140868650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6991}}^1$

素因数の和:7047

約数の個数: 48

約数和(自身を含む): 291314688

約数和(自身を除く): 150446038

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1550, 2015, 4030, 6991, 10075, 13982, 20150, 34955, 69910, 90883, 174775, 181766, 216721, 349550, 433442, 454415, 908830, 1083605, 2167210, 2272075, 2817373, 4544150, 5418025, 5634746, 10836050, 14086865, 28173730, 70434325, 140868650]

約数ペア:

[(1, 140868650), (2, 70434325), (5, 28173730), (10, 14086865), (13, 10836050), (25, 5634746), (26, 5418025), (31, 4544150), (50, 2817373), (62, 2272075), (65, 2167210), (130, 1083605), (155, 908830), (310, 454415), (325, 433442), (403, 349550), (650, 216721), (775, 181766), (806, 174775), (1550, 90883), (2015, 69910), (4030, 34955), (6991, 20150), (10075, 13982)]