81911040

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:364

約数の個数: 144

約数和(自身を含む): 265785408

約数和(自身を除く): 183874368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 83, 96, 120, 128, 160, 166, 192, 240, 249, 256, 257, 320, 332, 384, 415, 480, 498, 514, 640, 664, 768, 771, 830, 960, 996, 1028, 1245, 1280, 1285, 1328, 1542, 1660, 1920, 1992, 2056, 2490, 2570, 2656, 3084, 3320, 3840, 3855, 3984, 4112, 4980, 5140, 5312, 6168, 6640, 7710, 7968, 8224, 9960, 10280, 10624, 12336, 13280, 15420, 15936, 16448, 19920, 20560, 21248, 21331, 24672, 26560, 30840, 31872, 32896, 39840, 41120, 42662, 49344, 53120, 61680, 63744, 63993, 65792, 79680, 82240, 85324, 98688, 106240, 106655, 123360, 127986, 159360, 164480, 170648, 197376, 213310, 246720, 255972, 318720, 319965, 328960, 341296, 426620, 493440, 511944, 639930, 682592, 853240, 986880, 1023888, 1279860, 1365184, 1706480, 2047776, 2559720, 2730368, 3412960, 4095552, 5119440, 5460736, 6825920, 8191104, 10238880, 13651840, 16382208, 20477760, 27303680, 40955520, 81911040]

約数ペア:

[(1, 81911040), (2, 40955520), (3, 27303680), (4, 20477760), (5, 16382208), (6, 13651840), (8, 10238880), (10, 8191104), (12, 6825920), (15, 5460736), (16, 5119440), (20, 4095552), (24, 3412960), (30, 2730368), (32, 2559720), (40, 2047776), (48, 1706480), (60, 1365184), (64, 1279860), (80, 1023888), (83, 986880), (96, 853240), (120, 682592), (128, 639930), (160, 511944), (166, 493440), (192, 426620), (240, 341296), (249, 328960), (256, 319965), (257, 318720), (320, 255972), (332, 246720), (384, 213310), (415, 197376), (480, 170648), (498, 164480), (514, 159360), (640, 127986), (664, 123360), (768, 106655), (771, 106240), (830, 98688), (960, 85324), (996, 82240), (1028, 79680), (1245, 65792), (1280, 63993), (1285, 63744), (1328, 61680), (1542, 53120), (1660, 49344), (1920, 42662), (1992, 41120), (2056, 39840), (2490, 32896), (2570, 31872), (2656, 30840), (3084, 26560), (3320, 24672), (3840, 21331), (3855, 21248), (3984, 20560), (4112, 19920), (4980, 16448), (5140, 15936), (5312, 15420), (6168, 13280), (6640, 12336), (7710, 10624), (7968, 10280), (8224, 9960)]