131379640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{1307}}^1$

素因数の和:1684

約数の個数: 64

約数和(自身を含む): 339033600

約数和(自身を除く): 207653960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 359, 718, 1307, 1436, 1795, 2513, 2614, 2872, 3590, 5026, 5228, 6535, 7180, 9149, 10052, 10456, 12565, 13070, 14360, 18298, 20104, 25130, 26140, 36596, 45745, 50260, 52280, 73192, 91490, 100520, 182980, 365960, 469213, 938426, 1876852, 2346065, 3284491, 3753704, 4692130, 6568982, 9384260, 13137964, 16422455, 18768520, 26275928, 32844910, 65689820, 131379640]

約数ペア:

[(1, 131379640), (2, 65689820), (4, 32844910), (5, 26275928), (7, 18768520), (8, 16422455), (10, 13137964), (14, 9384260), (20, 6568982), (28, 4692130), (35, 3753704), (40, 3284491), (56, 2346065), (70, 1876852), (140, 938426), (280, 469213), (359, 365960), (718, 182980), (1307, 100520), (1436, 91490), (1795, 73192), (2513, 52280), (2614, 50260), (2872, 45745), (3590, 36596), (5026, 26140), (5228, 25130), (6535, 20104), (7180, 18298), (9149, 14360), (10052, 13070), (10456, 12565)]