201219140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{1123}}^1$

素因数の和:1197

約数の個数: 72

約数和(自身を含む): 463771392

約数和(自身を除く): 262552252

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 124, 155, 170, 289, 310, 340, 527, 578, 620, 1054, 1123, 1156, 1445, 2108, 2246, 2635, 2890, 4492, 5270, 5615, 5780, 8959, 10540, 11230, 17918, 19091, 22460, 34813, 35836, 38182, 44795, 69626, 76364, 89590, 95455, 139252, 174065, 179180, 190910, 324547, 348130, 381820, 591821, 649094, 696260, 1183642, 1298188, 1622735, 2367284, 2959105, 3245470, 5918210, 6490940, 10060957, 11836420, 20121914, 40243828, 50304785, 100609570, 201219140]

約数ペア:

[(1, 201219140), (2, 100609570), (4, 50304785), (5, 40243828), (10, 20121914), (17, 11836420), (20, 10060957), (31, 6490940), (34, 5918210), (62, 3245470), (68, 2959105), (85, 2367284), (124, 1622735), (155, 1298188), (170, 1183642), (289, 696260), (310, 649094), (340, 591821), (527, 381820), (578, 348130), (620, 324547), (1054, 190910), (1123, 179180), (1156, 174065), (1445, 139252), (2108, 95455), (2246, 89590), (2635, 76364), (2890, 69626), (4492, 44795), (5270, 38182), (5615, 35836), (5780, 34813), (8959, 22460), (10540, 19091), (11230, 17918)]