72931840

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{919}}^1$

素因数の和:973

約数の個数: 80

約数和(自身を含む): 180702720

約数和(自身を除く): 107770880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 919, 992, 1240, 1280, 1838, 1984, 2480, 2560, 3676, 3968, 4595, 4960, 7352, 7936, 9190, 9920, 14704, 15872, 18380, 19840, 28489, 29408, 36760, 39680, 56978, 58816, 73520, 79360, 113956, 117632, 142445, 147040, 227912, 235264, 284890, 294080, 455824, 470528, 569780, 588160, 911648, 1139560, 1176320, 1823296, 2279120, 2352640, 3646592, 4558240, 7293184, 9116480, 14586368, 18232960, 36465920, 72931840]

約数ペア:

[(1, 72931840), (2, 36465920), (4, 18232960), (5, 14586368), (8, 9116480), (10, 7293184), (16, 4558240), (20, 3646592), (31, 2352640), (32, 2279120), (40, 1823296), (62, 1176320), (64, 1139560), (80, 911648), (124, 588160), (128, 569780), (155, 470528), (160, 455824), (248, 294080), (256, 284890), (310, 235264), (320, 227912), (496, 147040), (512, 142445), (620, 117632), (640, 113956), (919, 79360), (992, 73520), (1240, 58816), (1280, 56978), (1838, 39680), (1984, 36760), (2480, 29408), (2560, 28489), (3676, 19840), (3968, 18380), (4595, 15872), (4960, 14704), (7352, 9920), (7936, 9190)]