657180220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{67}}^1\times {\mathrm{1697}}^1$

素因数の和:1807

約数の個数: 72

約数和(自身を含む): 1488792816

約数和(自身を除く): 831612596

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 67, 68, 85, 134, 170, 268, 289, 335, 340, 578, 670, 1139, 1156, 1340, 1445, 1697, 2278, 2890, 3394, 4556, 5695, 5780, 6788, 8485, 11390, 16970, 19363, 22780, 28849, 33940, 38726, 57698, 77452, 96815, 113699, 115396, 144245, 193630, 227398, 288490, 387260, 454796, 490433, 568495, 576980, 980866, 1136990, 1932883, 1961732, 2273980, 2452165, 3865766, 4904330, 7731532, 9664415, 9808660, 19328830, 32859011, 38657660, 65718022, 131436044, 164295055, 328590110, 657180220]

約数ペア:

[(1, 657180220), (2, 328590110), (4, 164295055), (5, 131436044), (10, 65718022), (17, 38657660), (20, 32859011), (34, 19328830), (67, 9808660), (68, 9664415), (85, 7731532), (134, 4904330), (170, 3865766), (268, 2452165), (289, 2273980), (335, 1961732), (340, 1932883), (578, 1136990), (670, 980866), (1139, 576980), (1156, 568495), (1340, 490433), (1445, 454796), (1697, 387260), (2278, 288490), (2890, 227398), (3394, 193630), (4556, 144245), (5695, 115396), (5780, 113699), (6788, 96815), (8485, 77452), (11390, 57698), (16970, 38726), (19363, 33940), (22780, 28849)]