72745280

素因数分解:

$2^6\times 5^1\times {\mathrm{281}}^1\times {\mathrm{809}}^1$

素因数の和:1107

約数の個数: 56

約数和(自身を含む): 174056040

約数和(自身を除く): 101310760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 281, 320, 562, 809, 1124, 1405, 1618, 2248, 2810, 3236, 4045, 4496, 5620, 6472, 8090, 8992, 11240, 12944, 16180, 17984, 22480, 25888, 32360, 44960, 51776, 64720, 89920, 129440, 227329, 258880, 454658, 909316, 1136645, 1818632, 2273290, 3637264, 4546580, 7274528, 9093160, 14549056, 18186320, 36372640, 72745280]

約数ペア:

[(1, 72745280), (2, 36372640), (4, 18186320), (5, 14549056), (8, 9093160), (10, 7274528), (16, 4546580), (20, 3637264), (32, 2273290), (40, 1818632), (64, 1136645), (80, 909316), (160, 454658), (281, 258880), (320, 227329), (562, 129440), (809, 89920), (1124, 64720), (1405, 51776), (1618, 44960), (2248, 32360), (2810, 25888), (3236, 22480), (4045, 17984), (4496, 16180), (5620, 12944), (6472, 11240), (8090, 8992)]