64400640

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{541}}^1$

素因数の和:596

約数の個数: 144

約数和(自身を含む): 212706816

約数和(自身を除く): 148306176

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 256, 310, 320, 372, 384, 465, 480, 496, 541, 620, 640, 744, 768, 930, 960, 992, 1082, 1240, 1280, 1488, 1623, 1860, 1920, 1984, 2164, 2480, 2705, 2976, 3246, 3720, 3840, 3968, 4328, 4960, 5410, 5952, 6492, 7440, 7936, 8115, 8656, 9920, 10820, 11904, 12984, 14880, 16230, 16771, 17312, 19840, 21640, 23808, 25968, 29760, 32460, 33542, 34624, 39680, 43280, 50313, 51936, 59520, 64920, 67084, 69248, 83855, 86560, 100626, 103872, 119040, 129840, 134168, 138496, 167710, 173120, 201252, 207744, 251565, 259680, 268336, 335420, 346240, 402504, 415488, 503130, 519360, 536672, 670840, 692480, 805008, 1006260, 1038720, 1073344, 1341680, 1610016, 2012520, 2077440, 2146688, 2683360, 3220032, 4025040, 4293376, 5366720, 6440064, 8050080, 10733440, 12880128, 16100160, 21466880, 32200320, 64400640]

約数ペア:

[(1, 64400640), (2, 32200320), (3, 21466880), (4, 16100160), (5, 12880128), (6, 10733440), (8, 8050080), (10, 6440064), (12, 5366720), (15, 4293376), (16, 4025040), (20, 3220032), (24, 2683360), (30, 2146688), (31, 2077440), (32, 2012520), (40, 1610016), (48, 1341680), (60, 1073344), (62, 1038720), (64, 1006260), (80, 805008), (93, 692480), (96, 670840), (120, 536672), (124, 519360), (128, 503130), (155, 415488), (160, 402504), (186, 346240), (192, 335420), (240, 268336), (248, 259680), (256, 251565), (310, 207744), (320, 201252), (372, 173120), (384, 167710), (465, 138496), (480, 134168), (496, 129840), (541, 119040), (620, 103872), (640, 100626), (744, 86560), (768, 83855), (930, 69248), (960, 67084), (992, 64920), (1082, 59520), (1240, 51936), (1280, 50313), (1488, 43280), (1623, 39680), (1860, 34624), (1920, 33542), (1984, 32460), (2164, 29760), (2480, 25968), (2705, 23808), (2976, 21640), (3246, 19840), (3720, 17312), (3840, 16771), (3968, 16230), (4328, 14880), (4960, 12984), (5410, 11904), (5952, 10820), (6492, 9920), (7440, 8656), (7936, 8115)]