40518920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1163}}^1$

素因数の和:1254

約数の個数: 64

約数和(自身を含む): 99731520

約数和(自身を除く): 59212600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 67, 104, 130, 134, 260, 268, 335, 520, 536, 670, 871, 1163, 1340, 1742, 2326, 2680, 3484, 4355, 4652, 5815, 6968, 8710, 9304, 11630, 15119, 17420, 23260, 30238, 34840, 46520, 60476, 75595, 77921, 120952, 151190, 155842, 302380, 311684, 389605, 604760, 623368, 779210, 1012973, 1558420, 2025946, 3116840, 4051892, 5064865, 8103784, 10129730, 20259460, 40518920]

約数ペア:

[(1, 40518920), (2, 20259460), (4, 10129730), (5, 8103784), (8, 5064865), (10, 4051892), (13, 3116840), (20, 2025946), (26, 1558420), (40, 1012973), (52, 779210), (65, 623368), (67, 604760), (104, 389605), (130, 311684), (134, 302380), (260, 155842), (268, 151190), (335, 120952), (520, 77921), (536, 75595), (670, 60476), (871, 46520), (1163, 34840), (1340, 30238), (1742, 23260), (2326, 17420), (2680, 15119), (3484, 11630), (4355, 9304), (4652, 8710), (5815, 6968)]