20162709880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{145139}}^1$

素因数の和:145324

約数の個数: 64

約数和(自身を含む): 47652364800

約数和(自身を除く): 27489654920

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 151, 184, 230, 302, 460, 604, 755, 920, 1208, 1510, 3020, 3473, 6040, 6946, 13892, 17365, 27784, 34730, 69460, 138920, 145139, 290278, 580556, 725695, 1161112, 1451390, 2902780, 3338197, 5805560, 6676394, 13352788, 16690985, 21915989, 26705576, 33381970, 43831978, 66763940, 87663956, 109579945, 133527880, 175327912, 219159890, 438319780, 504067747, 876639560, 1008135494, 2016270988, 2520338735, 4032541976, 5040677470, 10081354940, 20162709880]

約数ペア:

[(1, 20162709880), (2, 10081354940), (4, 5040677470), (5, 4032541976), (8, 2520338735), (10, 2016270988), (20, 1008135494), (23, 876639560), (40, 504067747), (46, 438319780), (92, 219159890), (115, 175327912), (151, 133527880), (184, 109579945), (230, 87663956), (302, 66763940), (460, 43831978), (604, 33381970), (755, 26705576), (920, 21915989), (1208, 16690985), (1510, 13352788), (3020, 6676394), (3473, 5805560), (6040, 3338197), (6946, 2902780), (13892, 1451390), (17365, 1161112), (27784, 725695), (34730, 580556), (69460, 290278), (138920, 145139)]