280116100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{6211}}^1$

素因数の和:6277

約数の個数: 72

約数和(自身を含む): 679394016

約数和(自身を除く): 399277916

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 41, 44, 50, 55, 82, 100, 110, 164, 205, 220, 275, 410, 451, 550, 820, 902, 1025, 1100, 1804, 2050, 2255, 4100, 4510, 6211, 9020, 11275, 12422, 22550, 24844, 31055, 45100, 62110, 68321, 124220, 136642, 155275, 254651, 273284, 310550, 341605, 509302, 621100, 683210, 1018604, 1273255, 1366420, 1708025, 2546510, 2801161, 3416050, 5093020, 5602322, 6366275, 6832100, 11204644, 12732550, 14005805, 25465100, 28011610, 56023220, 70029025, 140058050, 280116100]

約数ペア:

[(1, 280116100), (2, 140058050), (4, 70029025), (5, 56023220), (10, 28011610), (11, 25465100), (20, 14005805), (22, 12732550), (25, 11204644), (41, 6832100), (44, 6366275), (50, 5602322), (55, 5093020), (82, 3416050), (100, 2801161), (110, 2546510), (164, 1708025), (205, 1366420), (220, 1273255), (275, 1018604), (410, 683210), (451, 621100), (550, 509302), (820, 341605), (902, 310550), (1025, 273284), (1100, 254651), (1804, 155275), (2050, 136642), (2255, 124220), (4100, 68321), (4510, 62110), (6211, 45100), (9020, 31055), (11275, 24844), (12422, 22550)]