311960740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{947}}^1$

素因数の和:1157

約数の個数: 96

約数和(自身を含む): 811609344

約数和(自身を除く): 499648604

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 181, 182, 260, 362, 364, 455, 724, 905, 910, 947, 1267, 1810, 1820, 1894, 2353, 2534, 3620, 3788, 4706, 4735, 5068, 6335, 6629, 9412, 9470, 11765, 12311, 12670, 13258, 16471, 18940, 23530, 24622, 25340, 26516, 32942, 33145, 47060, 49244, 61555, 65884, 66290, 82355, 86177, 123110, 132580, 164710, 171407, 172354, 246220, 329420, 342814, 344708, 430885, 685628, 857035, 861770, 1199849, 1714070, 1723540, 2228291, 2399698, 3428140, 4456582, 4799396, 5999245, 8913164, 11141455, 11998490, 15598037, 22282910, 23996980, 31196074, 44565820, 62392148, 77990185, 155980370, 311960740]

約数ペア:

[(1, 311960740), (2, 155980370), (4, 77990185), (5, 62392148), (7, 44565820), (10, 31196074), (13, 23996980), (14, 22282910), (20, 15598037), (26, 11998490), (28, 11141455), (35, 8913164), (52, 5999245), (65, 4799396), (70, 4456582), (91, 3428140), (130, 2399698), (140, 2228291), (181, 1723540), (182, 1714070), (260, 1199849), (362, 861770), (364, 857035), (455, 685628), (724, 430885), (905, 344708), (910, 342814), (947, 329420), (1267, 246220), (1810, 172354), (1820, 171407), (1894, 164710), (2353, 132580), (2534, 123110), (3620, 86177), (3788, 82355), (4706, 66290), (4735, 65884), (5068, 61555), (6335, 49244), (6629, 47060), (9412, 33145), (9470, 32942), (11765, 26516), (12311, 25340), (12670, 24622), (13258, 23530), (16471, 18940)]