131240980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{857}}^1$

素因数の和:929

約数の個数: 96

約数和(自身を含む): 322882560

約数和(自身を除く): 191641580

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 31, 38, 52, 62, 65, 76, 95, 124, 130, 155, 190, 247, 260, 310, 380, 403, 494, 589, 620, 806, 857, 988, 1178, 1235, 1612, 1714, 2015, 2356, 2470, 2945, 3428, 4030, 4285, 4940, 5890, 7657, 8060, 8570, 11141, 11780, 15314, 16283, 17140, 22282, 26567, 30628, 32566, 38285, 44564, 53134, 55705, 65132, 76570, 81415, 106268, 111410, 132835, 153140, 162830, 211679, 222820, 265670, 325660, 345371, 423358, 504773, 531340, 690742, 846716, 1009546, 1058395, 1381484, 1726855, 2019092, 2116790, 2523865, 3453710, 4233580, 5047730, 6562049, 6907420, 10095460, 13124098, 26248196, 32810245, 65620490, 131240980]

約数ペア:

[(1, 131240980), (2, 65620490), (4, 32810245), (5, 26248196), (10, 13124098), (13, 10095460), (19, 6907420), (20, 6562049), (26, 5047730), (31, 4233580), (38, 3453710), (52, 2523865), (62, 2116790), (65, 2019092), (76, 1726855), (95, 1381484), (124, 1058395), (130, 1009546), (155, 846716), (190, 690742), (247, 531340), (260, 504773), (310, 423358), (380, 345371), (403, 325660), (494, 265670), (589, 222820), (620, 211679), (806, 162830), (857, 153140), (988, 132835), (1178, 111410), (1235, 106268), (1612, 81415), (1714, 76570), (2015, 65132), (2356, 55705), (2470, 53134), (2945, 44564), (3428, 38285), (4030, 32566), (4285, 30628), (4940, 26567), (5890, 22282), (7657, 17140), (8060, 16283), (8570, 15314), (11141, 11780)]