858252980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{8191}}^1$

素因数の和:8257

約数の個数: 72

約数和(自身を含む): 2014838784

約数和(自身を除く): 1156585804

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 169, 260, 310, 338, 403, 620, 676, 806, 845, 1612, 1690, 2015, 3380, 4030, 5239, 8060, 8191, 10478, 16382, 20956, 26195, 32764, 40955, 52390, 81910, 104780, 106483, 163820, 212966, 253921, 425932, 507842, 532415, 1015684, 1064830, 1269605, 1384279, 2129660, 2539210, 2768558, 3300973, 5078420, 5537116, 6601946, 6921395, 13203892, 13842790, 16504865, 27685580, 33009730, 42912649, 66019460, 85825298, 171650596, 214563245, 429126490, 858252980]

約数ペア:

[(1, 858252980), (2, 429126490), (4, 214563245), (5, 171650596), (10, 85825298), (13, 66019460), (20, 42912649), (26, 33009730), (31, 27685580), (52, 16504865), (62, 13842790), (65, 13203892), (124, 6921395), (130, 6601946), (155, 5537116), (169, 5078420), (260, 3300973), (310, 2768558), (338, 2539210), (403, 2129660), (620, 1384279), (676, 1269605), (806, 1064830), (845, 1015684), (1612, 532415), (1690, 507842), (2015, 425932), (3380, 253921), (4030, 212966), (5239, 163820), (8060, 106483), (8191, 104780), (10478, 81910), (16382, 52390), (20956, 40955), (26195, 32764)]