391895390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{1373}}^1$

素因数の和:1493

約数の個数: 64

約数和(自身を含む): 790632576

約数和(自身を除く): 398737186

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 73, 85, 115, 146, 170, 230, 365, 391, 730, 782, 1241, 1373, 1679, 1955, 2482, 2746, 3358, 3910, 6205, 6865, 8395, 12410, 13730, 16790, 23341, 28543, 31579, 46682, 57086, 63158, 100229, 116705, 142715, 157895, 200458, 233410, 285430, 315790, 501145, 536843, 1002290, 1073686, 1703893, 2305267, 2684215, 3407786, 4610534, 5368430, 8519465, 11526335, 17038930, 23052670, 39189539, 78379078, 195947695, 391895390]

約数ペア:

[(1, 391895390), (2, 195947695), (5, 78379078), (10, 39189539), (17, 23052670), (23, 17038930), (34, 11526335), (46, 8519465), (73, 5368430), (85, 4610534), (115, 3407786), (146, 2684215), (170, 2305267), (230, 1703893), (365, 1073686), (391, 1002290), (730, 536843), (782, 501145), (1241, 315790), (1373, 285430), (1679, 233410), (1955, 200458), (2482, 157895), (2746, 142715), (3358, 116705), (3910, 100229), (6205, 63158), (6865, 57086), (8395, 46682), (12410, 31579), (13730, 28543), (16790, 23341)]