20194802680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9521}}^1\times {\mathrm{4079}}^1$

素因数の和:13624

約数の個数: 64

約数和(自身を含む): 48950697600

約数和(自身を除く): 28755894920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 4079, 8158, 9521, 16316, 19042, 20395, 32632, 38084, 40790, 47605, 53027, 76168, 81580, 95210, 106054, 123773, 163160, 190420, 212108, 247546, 265135, 380840, 424216, 495092, 530270, 618865, 990184, 1060540, 1237730, 2121080, 2475460, 4950920, 38836159, 77672318, 155344636, 194180795, 310689272, 388361590, 504870067, 776723180, 1009740134, 1553446360, 2019480268, 2524350335, 4038960536, 5048700670, 10097401340, 20194802680]

約数ペア:

[(1, 20194802680), (2, 10097401340), (4, 5048700670), (5, 4038960536), (8, 2524350335), (10, 2019480268), (13, 1553446360), (20, 1009740134), (26, 776723180), (40, 504870067), (52, 388361590), (65, 310689272), (104, 194180795), (130, 155344636), (260, 77672318), (520, 38836159), (4079, 4950920), (8158, 2475460), (9521, 2121080), (16316, 1237730), (19042, 1060540), (20395, 990184), (32632, 618865), (38084, 530270), (40790, 495092), (47605, 424216), (53027, 380840), (76168, 265135), (81580, 247546), (95210, 212108), (106054, 190420), (123773, 163160)]