20259460

素因数分解:

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

素因数の和:1252

約数の個数: 48

約数和(自身を含む): 46541376

約数和(自身を除く): 26281916

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1163, 1340, 1742, 2326, 3484, 4355, 4652, 5815, 8710, 11630, 15119, 17420, 23260, 30238, 60476, 75595, 77921, 151190, 155842, 302380, 311684, 389605, 779210, 1012973, 1558420, 2025946, 4051892, 5064865, 10129730, 20259460]

約数ペア:

[(1, 20259460), (2, 10129730), (4, 5064865), (5, 4051892), (10, 2025946), (13, 1558420), (20, 1012973), (26, 779210), (52, 389605), (65, 311684), (67, 302380), (130, 155842), (134, 151190), (260, 77921), (268, 75595), (335, 60476), (670, 30238), (871, 23260), (1163, 17420), (1340, 15119), (1742, 11630), (2326, 8710), (3484, 5815), (4355, 4652)]