788507960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{3631}}^1$

素因数の和:3792

約数の個数: 64

約数和(自身を含む): 1823990400

約数和(自身を除く): 1035482440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 89, 122, 178, 244, 305, 356, 445, 488, 610, 712, 890, 1220, 1780, 2440, 3560, 3631, 5429, 7262, 10858, 14524, 18155, 21716, 27145, 29048, 36310, 43432, 54290, 72620, 108580, 145240, 217160, 221491, 323159, 442982, 646318, 885964, 1107455, 1292636, 1615795, 1771928, 2214910, 2585272, 3231590, 4429820, 6463180, 8859640, 12926360, 19712699, 39425398, 78850796, 98563495, 157701592, 197126990, 394253980, 788507960]

約数ペア:

[(1, 788507960), (2, 394253980), (4, 197126990), (5, 157701592), (8, 98563495), (10, 78850796), (20, 39425398), (40, 19712699), (61, 12926360), (89, 8859640), (122, 6463180), (178, 4429820), (244, 3231590), (305, 2585272), (356, 2214910), (445, 1771928), (488, 1615795), (610, 1292636), (712, 1107455), (890, 885964), (1220, 646318), (1780, 442982), (2440, 323159), (3560, 221491), (3631, 217160), (5429, 145240), (7262, 108580), (10858, 72620), (14524, 54290), (18155, 43432), (21716, 36310), (27145, 29048)]