120653980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{147139}}^1$

素因数の和:147189

約数の個数: 24

約数和(自身を含む): 259554960

約数和(自身を除く): 138900980

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 147139, 294278, 588556, 735695, 1471390, 2942780, 6032699, 12065398, 24130796, 30163495, 60326990, 120653980]

約数ペア:

[(1, 120653980), (2, 60326990), (4, 30163495), (5, 24130796), (10, 12065398), (20, 6032699), (41, 2942780), (82, 1471390), (164, 735695), (205, 588556), (410, 294278), (820, 147139)]