257453950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1013}}^1$

素因数の和:1078

約数の個数: 96

約数和(自身を含む): 570338496

約数和(自身を除く): 312884546

約数列:

[1, 2, 5, 10, 13, 17, 23, 25, 26, 34, 46, 50, 65, 85, 115, 130, 170, 221, 230, 299, 325, 391, 425, 442, 575, 598, 650, 782, 850, 1013, 1105, 1150, 1495, 1955, 2026, 2210, 2990, 3910, 5065, 5083, 5525, 7475, 9775, 10130, 10166, 11050, 13169, 14950, 17221, 19550, 23299, 25325, 25415, 26338, 34442, 46598, 50650, 50830, 65845, 86105, 116495, 127075, 131690, 172210, 223873, 232990, 254150, 302887, 329225, 396083, 430525, 447746, 582475, 605774, 658450, 792166, 861050, 1119365, 1164950, 1514435, 1980415, 2238730, 3028870, 3960830, 5149079, 5596825, 7572175, 9902075, 10298158, 11193650, 15144350, 19804150, 25745395, 51490790, 128726975, 257453950]

約数ペア:

[(1, 257453950), (2, 128726975), (5, 51490790), (10, 25745395), (13, 19804150), (17, 15144350), (23, 11193650), (25, 10298158), (26, 9902075), (34, 7572175), (46, 5596825), (50, 5149079), (65, 3960830), (85, 3028870), (115, 2238730), (130, 1980415), (170, 1514435), (221, 1164950), (230, 1119365), (299, 861050), (325, 792166), (391, 658450), (425, 605774), (442, 582475), (575, 447746), (598, 430525), (650, 396083), (782, 329225), (850, 302887), (1013, 254150), (1105, 232990), (1150, 223873), (1495, 172210), (1955, 131690), (2026, 127075), (2210, 116495), (2990, 86105), (3910, 65845), (5065, 50830), (5083, 50650), (5525, 46598), (7475, 34442), (9775, 26338), (10130, 25415), (10166, 25325), (11050, 23299), (13169, 19550), (14950, 17221)]