320457650

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{67}}^1\times {\mathrm{331}}^1$

素因数の和:444

約数の個数: 72

約数和(自身を含む): 644567376

約数和(自身を除く): 324109726

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 67, 85, 134, 170, 289, 331, 335, 425, 578, 662, 670, 850, 1139, 1445, 1655, 1675, 2278, 2890, 3310, 3350, 5627, 5695, 7225, 8275, 11254, 11390, 14450, 16550, 19363, 22177, 28135, 28475, 38726, 44354, 56270, 56950, 95659, 96815, 110885, 140675, 191318, 193630, 221770, 281350, 377009, 478295, 484075, 554425, 754018, 956590, 968150, 1108850, 1885045, 2391475, 3770090, 4782950, 6409153, 9425225, 12818306, 18850450, 32045765, 64091530, 160228825, 320457650]

約数ペア:

[(1, 320457650), (2, 160228825), (5, 64091530), (10, 32045765), (17, 18850450), (25, 12818306), (34, 9425225), (50, 6409153), (67, 4782950), (85, 3770090), (134, 2391475), (170, 1885045), (289, 1108850), (331, 968150), (335, 956590), (425, 754018), (578, 554425), (662, 484075), (670, 478295), (850, 377009), (1139, 281350), (1445, 221770), (1655, 193630), (1675, 191318), (2278, 140675), (2890, 110885), (3310, 96815), (3350, 95659), (5627, 56950), (5695, 56270), (7225, 44354), (8275, 38726), (11254, 28475), (11390, 28135), (14450, 22177), (16550, 19363)]