404156740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{1097}}^1$

素因数の和:1241

約数の個数: 72

約数和(自身を含む): 928315080

約数和(自身を除く): 524158340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 169, 218, 260, 338, 436, 545, 676, 845, 1090, 1097, 1417, 1690, 2180, 2194, 2834, 3380, 4388, 5485, 5668, 7085, 10970, 14170, 14261, 18421, 21940, 28340, 28522, 36842, 57044, 71305, 73684, 92105, 119573, 142610, 184210, 185393, 239146, 285220, 368420, 370786, 478292, 597865, 741572, 926965, 1195730, 1554449, 1853930, 2391460, 3108898, 3707860, 6217796, 7772245, 15544490, 20207837, 31088980, 40415674, 80831348, 101039185, 202078370, 404156740]

約数ペア:

[(1, 404156740), (2, 202078370), (4, 101039185), (5, 80831348), (10, 40415674), (13, 31088980), (20, 20207837), (26, 15544490), (52, 7772245), (65, 6217796), (109, 3707860), (130, 3108898), (169, 2391460), (218, 1853930), (260, 1554449), (338, 1195730), (436, 926965), (545, 741572), (676, 597865), (845, 478292), (1090, 370786), (1097, 368420), (1417, 285220), (1690, 239146), (2180, 185393), (2194, 184210), (2834, 142610), (3380, 119573), (4388, 92105), (5485, 73684), (5668, 71305), (7085, 57044), (10970, 36842), (14170, 28522), (14261, 28340), (18421, 21940)]