18186320

素因数分解:

$2^4\times 5^1\times {\mathrm{281}}^1\times {\mathrm{809}}^1$

素因数の和:1103

約数の個数: 40

約数和(自身を含む): 42486120

約数和(自身を除く): 24299800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 281, 562, 809, 1124, 1405, 1618, 2248, 2810, 3236, 4045, 4496, 5620, 6472, 8090, 11240, 12944, 16180, 22480, 32360, 64720, 227329, 454658, 909316, 1136645, 1818632, 2273290, 3637264, 4546580, 9093160, 18186320]

約数ペア:

[(1, 18186320), (2, 9093160), (4, 4546580), (5, 3637264), (8, 2273290), (10, 1818632), (16, 1136645), (20, 909316), (40, 454658), (80, 227329), (281, 64720), (562, 32360), (809, 22480), (1124, 16180), (1405, 12944), (1618, 11240), (2248, 8090), (2810, 6472), (3236, 5620), (4045, 4496)]