31390060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:323

約数の個数: 72

約数和(自身を含む): 73601136

約数和(自身を除く): 42211076

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 169, 185, 251, 260, 338, 370, 481, 502, 676, 740, 845, 962, 1004, 1255, 1690, 1924, 2405, 2510, 3263, 3380, 4810, 5020, 6253, 6526, 9287, 9620, 12506, 13052, 16315, 18574, 25012, 31265, 32630, 37148, 42419, 46435, 62530, 65260, 84838, 92870, 120731, 125060, 169676, 185740, 212095, 241462, 424190, 482924, 603655, 848380, 1207310, 1569503, 2414620, 3139006, 6278012, 7847515, 15695030, 31390060]

約数ペア:

[(1, 31390060), (2, 15695030), (4, 7847515), (5, 6278012), (10, 3139006), (13, 2414620), (20, 1569503), (26, 1207310), (37, 848380), (52, 603655), (65, 482924), (74, 424190), (130, 241462), (148, 212095), (169, 185740), (185, 169676), (251, 125060), (260, 120731), (338, 92870), (370, 84838), (481, 65260), (502, 62530), (676, 46435), (740, 42419), (845, 37148), (962, 32630), (1004, 31265), (1255, 25012), (1690, 18574), (1924, 16315), (2405, 13052), (2510, 12506), (3263, 9620), (3380, 9287), (4810, 6526), (5020, 6253)]