407410900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{3967}}^1$

素因数の和:4073

約数の個数: 72

約数和(自身を含む): 964382720

約数和(自身を除く): 556971820

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 79, 100, 130, 158, 260, 316, 325, 395, 650, 790, 1027, 1300, 1580, 1975, 2054, 3950, 3967, 4108, 5135, 7900, 7934, 10270, 15868, 19835, 20540, 25675, 39670, 51350, 51571, 79340, 99175, 102700, 103142, 198350, 206284, 257855, 313393, 396700, 515710, 626786, 1031420, 1253572, 1289275, 1566965, 2578550, 3133930, 4074109, 5157100, 6267860, 7834825, 8148218, 15669650, 16296436, 20370545, 31339300, 40741090, 81482180, 101852725, 203705450, 407410900]

約数ペア:

[(1, 407410900), (2, 203705450), (4, 101852725), (5, 81482180), (10, 40741090), (13, 31339300), (20, 20370545), (25, 16296436), (26, 15669650), (50, 8148218), (52, 7834825), (65, 6267860), (79, 5157100), (100, 4074109), (130, 3133930), (158, 2578550), (260, 1566965), (316, 1289275), (325, 1253572), (395, 1031420), (650, 626786), (790, 515710), (1027, 396700), (1300, 313393), (1580, 257855), (1975, 206284), (2054, 198350), (3950, 103142), (3967, 102700), (4108, 99175), (5135, 79340), (7900, 51571), (7934, 51350), (10270, 39670), (15868, 25675), (19835, 20540)]