28969460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1663}}^1$

素因数の和:1752

約数の個数: 48

約数和(自身を含む): 66533376

約数和(自身を除く): 37563916

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1663, 1742, 3326, 3484, 4355, 6652, 8315, 8710, 16630, 17420, 21619, 33260, 43238, 86476, 108095, 111421, 216190, 222842, 432380, 445684, 557105, 1114210, 1448473, 2228420, 2896946, 5793892, 7242365, 14484730, 28969460]

約数ペア:

[(1, 28969460), (2, 14484730), (4, 7242365), (5, 5793892), (10, 2896946), (13, 2228420), (20, 1448473), (26, 1114210), (52, 557105), (65, 445684), (67, 432380), (130, 222842), (134, 216190), (260, 111421), (268, 108095), (335, 86476), (670, 43238), (871, 33260), (1340, 21619), (1663, 17420), (1742, 16630), (3326, 8710), (3484, 8315), (4355, 6652)]