255479140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{2531}}^1$

素因数の和:2657

約数の個数: 72

約数和(自身を含む): 630407232

約数和(自身を除く): 374928092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 103, 140, 196, 206, 245, 412, 490, 515, 721, 980, 1030, 1442, 2060, 2531, 2884, 3605, 5047, 5062, 7210, 10094, 10124, 12655, 14420, 17717, 20188, 25235, 25310, 35434, 50470, 50620, 70868, 88585, 100940, 124019, 177170, 248038, 260693, 354340, 496076, 521386, 620095, 1042772, 1240190, 1303465, 1824851, 2480380, 2606930, 3649702, 5213860, 7299404, 9124255, 12773957, 18248510, 25547914, 36497020, 51095828, 63869785, 127739570, 255479140]

約数ペア:

[(1, 255479140), (2, 127739570), (4, 63869785), (5, 51095828), (7, 36497020), (10, 25547914), (14, 18248510), (20, 12773957), (28, 9124255), (35, 7299404), (49, 5213860), (70, 3649702), (98, 2606930), (103, 2480380), (140, 1824851), (196, 1303465), (206, 1240190), (245, 1042772), (412, 620095), (490, 521386), (515, 496076), (721, 354340), (980, 260693), (1030, 248038), (1442, 177170), (2060, 124019), (2531, 100940), (2884, 88585), (3605, 70868), (5047, 50620), (5062, 50470), (7210, 35434), (10094, 25310), (10124, 25235), (12655, 20188), (14420, 17717)]