71321080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{509}}^1$

素因数の和:664

約数の個数: 64

約数和(自身を含む): 167443200

約数和(自身を除く): 96122120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 113, 124, 155, 226, 248, 310, 452, 509, 565, 620, 904, 1018, 1130, 1240, 2036, 2260, 2545, 3503, 4072, 4520, 5090, 7006, 10180, 14012, 15779, 17515, 20360, 28024, 31558, 35030, 57517, 63116, 70060, 78895, 115034, 126232, 140120, 157790, 230068, 287585, 315580, 460136, 575170, 631160, 1150340, 1783027, 2300680, 3566054, 7132108, 8915135, 14264216, 17830270, 35660540, 71321080]

約数ペア:

[(1, 71321080), (2, 35660540), (4, 17830270), (5, 14264216), (8, 8915135), (10, 7132108), (20, 3566054), (31, 2300680), (40, 1783027), (62, 1150340), (113, 631160), (124, 575170), (155, 460136), (226, 315580), (248, 287585), (310, 230068), (452, 157790), (509, 140120), (565, 126232), (620, 115034), (904, 78895), (1018, 70060), (1130, 63116), (1240, 57517), (2036, 35030), (2260, 31558), (2545, 28024), (3503, 20360), (4072, 17515), (4520, 15779), (5090, 14012), (7006, 10180)]