258889740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{277}}^1\times {\mathrm{421}}^1$

素因数の和:747

約数の個数: 96

約数和(自身を含む): 748945344

約数和(自身を除く): 490055604

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 111, 148, 185, 222, 277, 370, 421, 444, 554, 555, 740, 831, 842, 1108, 1110, 1263, 1385, 1662, 1684, 2105, 2220, 2526, 2770, 3324, 4155, 4210, 5052, 5540, 6315, 8310, 8420, 10249, 12630, 15577, 16620, 20498, 25260, 30747, 31154, 40996, 46731, 51245, 61494, 62308, 77885, 93462, 102490, 116617, 122988, 153735, 155770, 186924, 204980, 233234, 233655, 307470, 311540, 349851, 466468, 467310, 583085, 614940, 699702, 934620, 1166170, 1399404, 1749255, 2332340, 3498510, 4314829, 6997020, 8629658, 12944487, 17259316, 21574145, 25888974, 43148290, 51777948, 64722435, 86296580, 129444870, 258889740]

約数ペア:

[(1, 258889740), (2, 129444870), (3, 86296580), (4, 64722435), (5, 51777948), (6, 43148290), (10, 25888974), (12, 21574145), (15, 17259316), (20, 12944487), (30, 8629658), (37, 6997020), (60, 4314829), (74, 3498510), (111, 2332340), (148, 1749255), (185, 1399404), (222, 1166170), (277, 934620), (370, 699702), (421, 614940), (444, 583085), (554, 467310), (555, 466468), (740, 349851), (831, 311540), (842, 307470), (1108, 233655), (1110, 233234), (1263, 204980), (1385, 186924), (1662, 155770), (1684, 153735), (2105, 122988), (2220, 116617), (2526, 102490), (2770, 93462), (3324, 77885), (4155, 62308), (4210, 61494), (5052, 51245), (5540, 46731), (6315, 40996), (8310, 31154), (8420, 30747), (10249, 25260), (12630, 20498), (15577, 16620)]