640629120

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:297

約数の個数: 256

約数和(自身を含む): 2167948800

約数和(自身を除く): 1527319680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 64, 69, 80, 89, 92, 96, 115, 120, 128, 138, 160, 163, 178, 184, 192, 230, 240, 267, 276, 320, 326, 345, 356, 368, 384, 445, 460, 480, 489, 534, 552, 640, 652, 690, 712, 736, 815, 890, 920, 960, 978, 1068, 1104, 1304, 1335, 1380, 1424, 1472, 1630, 1780, 1840, 1920, 1956, 2047, 2136, 2208, 2445, 2608, 2670, 2760, 2848, 2944, 3260, 3560, 3680, 3749, 3912, 4094, 4272, 4416, 4890, 5216, 5340, 5520, 5696, 6141, 6520, 7120, 7360, 7498, 7824, 8188, 8544, 8832, 9780, 10235, 10432, 10680, 11040, 11247, 11392, 12282, 13040, 14240, 14507, 14720, 14996, 15648, 16376, 17088, 18745, 19560, 20470, 20864, 21360, 22080, 22494, 24564, 26080, 28480, 29014, 29992, 30705, 31296, 32752, 34176, 37490, 39120, 40940, 42720, 43521, 44160, 44988, 49128, 52160, 56235, 56960, 58028, 59984, 61410, 62592, 65504, 72535, 74980, 78240, 81880, 85440, 87042, 89976, 98256, 104320, 112470, 116056, 119968, 122820, 131008, 145070, 149960, 156480, 163760, 170880, 174084, 179952, 196512, 217605, 224940, 232112, 239936, 245640, 262016, 290140, 299920, 312960, 327520, 333661, 348168, 359904, 393024, 435210, 449880, 464224, 479872, 491280, 580280, 599840, 655040, 667322, 696336, 719808, 786048, 870420, 899760, 928448, 982560, 1000983, 1160560, 1199680, 1310080, 1334644, 1392672, 1439616, 1668305, 1740840, 1799520, 1856896, 1965120, 2001966, 2321120, 2399360, 2669288, 2785344, 3336610, 3481680, 3599040, 3930240, 4003932, 4642240, 5004915, 5338576, 5570688, 6673220, 6963360, 7198080, 8007864, 9284480, 10009830, 10677152, 13346440, 13926720, 16015728, 20019660, 21354304, 26692880, 27853440, 32031456, 40039320, 42708608, 53385760, 64062912, 80078640, 106771520, 128125824, 160157280, 213543040, 320314560, 640629120]

約数ペア:

[(1, 640629120), (2, 320314560), (3, 213543040), (4, 160157280), (5, 128125824), (6, 106771520), (8, 80078640), (10, 64062912), (12, 53385760), (15, 42708608), (16, 40039320), (20, 32031456), (23, 27853440), (24, 26692880), (30, 21354304), (32, 20019660), (40, 16015728), (46, 13926720), (48, 13346440), (60, 10677152), (64, 10009830), (69, 9284480), (80, 8007864), (89, 7198080), (92, 6963360), (96, 6673220), (115, 5570688), (120, 5338576), (128, 5004915), (138, 4642240), (160, 4003932), (163, 3930240), (178, 3599040), (184, 3481680), (192, 3336610), (230, 2785344), (240, 2669288), (267, 2399360), (276, 2321120), (320, 2001966), (326, 1965120), (345, 1856896), (356, 1799520), (368, 1740840), (384, 1668305), (445, 1439616), (460, 1392672), (480, 1334644), (489, 1310080), (534, 1199680), (552, 1160560), (640, 1000983), (652, 982560), (690, 928448), (712, 899760), (736, 870420), (815, 786048), (890, 719808), (920, 696336), (960, 667322), (978, 655040), (1068, 599840), (1104, 580280), (1304, 491280), (1335, 479872), (1380, 464224), (1424, 449880), (1472, 435210), (1630, 393024), (1780, 359904), (1840, 348168), (1920, 333661), (1956, 327520), (2047, 312960), (2136, 299920), (2208, 290140), (2445, 262016), (2608, 245640), (2670, 239936), (2760, 232112), (2848, 224940), (2944, 217605), (3260, 196512), (3560, 179952), (3680, 174084), (3749, 170880), (3912, 163760), (4094, 156480), (4272, 149960), (4416, 145070), (4890, 131008), (5216, 122820), (5340, 119968), (5520, 116056), (5696, 112470), (6141, 104320), (6520, 98256), (7120, 89976), (7360, 87042), (7498, 85440), (7824, 81880), (8188, 78240), (8544, 74980), (8832, 72535), (9780, 65504), (10235, 62592), (10432, 61410), (10680, 59984), (11040, 58028), (11247, 56960), (11392, 56235), (12282, 52160), (13040, 49128), (14240, 44988), (14507, 44160), (14720, 43521), (14996, 42720), (15648, 40940), (16376, 39120), (17088, 37490), (18745, 34176), (19560, 32752), (20470, 31296), (20864, 30705), (21360, 29992), (22080, 29014), (22494, 28480), (24564, 26080)]