165912640

素因数分解:

$2^6\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6563}}^1$

素因数の和:6659

約数の個数: 56

約数和(自身を含む): 400141440

約数和(自身を除く): 234228800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 158, 160, 316, 320, 395, 632, 790, 1264, 1580, 2528, 3160, 5056, 6320, 6563, 12640, 13126, 25280, 26252, 32815, 52504, 65630, 105008, 131260, 210016, 262520, 420032, 518477, 525040, 1036954, 1050080, 2073908, 2100160, 2592385, 4147816, 5184770, 8295632, 10369540, 16591264, 20739080, 33182528, 41478160, 82956320, 165912640]

約数ペア:

[(1, 165912640), (2, 82956320), (4, 41478160), (5, 33182528), (8, 20739080), (10, 16591264), (16, 10369540), (20, 8295632), (32, 5184770), (40, 4147816), (64, 2592385), (79, 2100160), (80, 2073908), (158, 1050080), (160, 1036954), (316, 525040), (320, 518477), (395, 420032), (632, 262520), (790, 210016), (1264, 131260), (1580, 105008), (2528, 65630), (3160, 52504), (5056, 32815), (6320, 26252), (6563, 25280), (12640, 13126)]