81720480

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2791}}^1$

素因数の和:2870

約数の個数: 96

約数和(自身を含む): 261733248

約数和(自身を除く): 180012768

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 80, 96, 120, 122, 160, 183, 240, 244, 305, 366, 480, 488, 610, 732, 915, 976, 1220, 1464, 1830, 1952, 2440, 2791, 2928, 3660, 4880, 5582, 5856, 7320, 8373, 9760, 11164, 13955, 14640, 16746, 22328, 27910, 29280, 33492, 41865, 44656, 55820, 66984, 83730, 89312, 111640, 133968, 167460, 170251, 223280, 267936, 334920, 340502, 446560, 510753, 669840, 681004, 851255, 1021506, 1339680, 1362008, 1702510, 2043012, 2553765, 2724016, 3405020, 4086024, 5107530, 5448032, 6810040, 8172048, 10215060, 13620080, 16344096, 20430120, 27240160, 40860240, 81720480]

約数ペア:

[(1, 81720480), (2, 40860240), (3, 27240160), (4, 20430120), (5, 16344096), (6, 13620080), (8, 10215060), (10, 8172048), (12, 6810040), (15, 5448032), (16, 5107530), (20, 4086024), (24, 3405020), (30, 2724016), (32, 2553765), (40, 2043012), (48, 1702510), (60, 1362008), (61, 1339680), (80, 1021506), (96, 851255), (120, 681004), (122, 669840), (160, 510753), (183, 446560), (240, 340502), (244, 334920), (305, 267936), (366, 223280), (480, 170251), (488, 167460), (610, 133968), (732, 111640), (915, 89312), (976, 83730), (1220, 66984), (1464, 55820), (1830, 44656), (1952, 41865), (2440, 33492), (2791, 29280), (2928, 27910), (3660, 22328), (4880, 16746), (5582, 14640), (5856, 13955), (7320, 11164), (8373, 9760)]