31976620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6473}}^1$

素因数の和:6514

約数の個数: 48

約数和(自身を含む): 76134240

約数和(自身を除く): 44157620

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 6473, 12946, 25892, 32365, 64730, 84149, 122987, 129460, 168298, 245974, 336596, 420745, 491948, 614935, 841490, 1229870, 1598831, 1682980, 2459740, 3197662, 6395324, 7994155, 15988310, 31976620]

約数ペア:

[(1, 31976620), (2, 15988310), (4, 7994155), (5, 6395324), (10, 3197662), (13, 2459740), (19, 1682980), (20, 1598831), (26, 1229870), (38, 841490), (52, 614935), (65, 491948), (76, 420745), (95, 336596), (130, 245974), (190, 168298), (247, 129460), (260, 122987), (380, 84149), (494, 64730), (988, 32365), (1235, 25892), (2470, 12946), (4940, 6473)]