40239550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1997}}^1$

素因数の和:2053

約数の個数: 48

約数和(自身を含む): 83244672

約数和(自身を除く): 43005122

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1550, 1997, 2015, 3994, 4030, 9985, 10075, 19970, 20150, 25961, 49925, 51922, 61907, 99850, 123814, 129805, 259610, 309535, 619070, 649025, 804791, 1298050, 1547675, 1609582, 3095350, 4023955, 8047910, 20119775, 40239550]

約数ペア:

[(1, 40239550), (2, 20119775), (5, 8047910), (10, 4023955), (13, 3095350), (25, 1609582), (26, 1547675), (31, 1298050), (50, 804791), (62, 649025), (65, 619070), (130, 309535), (155, 259610), (310, 129805), (325, 123814), (403, 99850), (650, 61907), (775, 51922), (806, 49925), (1550, 25961), (1997, 20150), (2015, 19970), (3994, 10075), (4030, 9985)]