20078695040

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1012031}}^1$

素因数の和:1012081

約数の個数: 64

約数和(自身を含む): 49549086720

約数和(自身を除く): 29470391680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 19840, 1012031, 2024062, 4048124, 5060155, 8096248, 10120310, 16192496, 20240620, 31372961, 32384992, 40481240, 62745922, 64769984, 80962480, 125491844, 129539968, 156864805, 161924960, 250983688, 313729610, 323849920, 501967376, 627459220, 647699840, 1003934752, 1254918440, 2007869504, 2509836880, 4015739008, 5019673760, 10039347520, 20078695040]

約数ペア:

[(1, 20078695040), (2, 10039347520), (4, 5019673760), (5, 4015739008), (8, 2509836880), (10, 2007869504), (16, 1254918440), (20, 1003934752), (31, 647699840), (32, 627459220), (40, 501967376), (62, 323849920), (64, 313729610), (80, 250983688), (124, 161924960), (128, 156864805), (155, 129539968), (160, 125491844), (248, 80962480), (310, 64769984), (320, 62745922), (496, 40481240), (620, 32384992), (640, 31372961), (992, 20240620), (1240, 16192496), (1984, 10120310), (2480, 8096248), (3968, 5060155), (4960, 4048124), (9920, 2024062), (19840, 1012031)]