151785220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{769}}^1$

素因数の和:988

約数の個数: 48

約数和(自身を含む): 325987200

約数和(自身を除く): 174201980

約数列:

[1, 2, 4, 5, 10, 20, 71, 139, 142, 278, 284, 355, 556, 695, 710, 769, 1390, 1420, 1538, 2780, 3076, 3845, 7690, 9869, 15380, 19738, 39476, 49345, 54599, 98690, 106891, 109198, 197380, 213782, 218396, 272995, 427564, 534455, 545990, 1068910, 1091980, 2137820, 7589261, 15178522, 30357044, 37946305, 75892610, 151785220]

約数ペア:

[(1, 151785220), (2, 75892610), (4, 37946305), (5, 30357044), (10, 15178522), (20, 7589261), (71, 2137820), (139, 1091980), (142, 1068910), (278, 545990), (284, 534455), (355, 427564), (556, 272995), (695, 218396), (710, 213782), (769, 197380), (1390, 109198), (1420, 106891), (1538, 98690), (2780, 54599), (3076, 49345), (3845, 39476), (7690, 19738), (9869, 15380)]