18172125

素因数分解:

$3^2\times 5^3\times {\mathrm{29}}^1\times {\mathrm{557}}^1$

素因数の和:607

約数の個数: 48

約数和(自身を含む): 33948720

約数和(自身を除く): 15776595

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 125, 145, 225, 261, 375, 435, 557, 725, 1125, 1305, 1671, 2175, 2785, 3625, 5013, 6525, 8355, 10875, 13925, 16153, 25065, 32625, 41775, 48459, 69625, 80765, 125325, 145377, 208875, 242295, 403825, 626625, 726885, 1211475, 2019125, 3634425, 6057375, 18172125]

約数ペア:

[(1, 18172125), (3, 6057375), (5, 3634425), (9, 2019125), (15, 1211475), (25, 726885), (29, 626625), (45, 403825), (75, 242295), (87, 208875), (125, 145377), (145, 125325), (225, 80765), (261, 69625), (375, 48459), (435, 41775), (557, 32625), (725, 25065), (1125, 16153), (1305, 13925), (1671, 10875), (2175, 8355), (2785, 6525), (3625, 5013)]