20761235720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1052801}}^1$

素因数の和:1052858

約数の個数: 64

約数和(自身を含む): 51166177200

約数和(自身を除く): 30404941480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 29, 34, 40, 58, 68, 85, 116, 136, 145, 170, 232, 290, 340, 493, 580, 680, 986, 1160, 1972, 2465, 3944, 4930, 9860, 19720, 1052801, 2105602, 4211204, 5264005, 8422408, 10528010, 17897617, 21056020, 30531229, 35795234, 42112040, 61062458, 71590468, 89488085, 122124916, 143180936, 152656145, 178976170, 244249832, 305312290, 357952340, 519030893, 610624580, 715904680, 1038061786, 1221249160, 2076123572, 2595154465, 4152247144, 5190308930, 10380617860, 20761235720]

約数ペア:

[(1, 20761235720), (2, 10380617860), (4, 5190308930), (5, 4152247144), (8, 2595154465), (10, 2076123572), (17, 1221249160), (20, 1038061786), (29, 715904680), (34, 610624580), (40, 519030893), (58, 357952340), (68, 305312290), (85, 244249832), (116, 178976170), (136, 152656145), (145, 143180936), (170, 122124916), (232, 89488085), (290, 71590468), (340, 61062458), (493, 42112040), (580, 35795234), (680, 30531229), (986, 21056020), (1160, 17897617), (1972, 10528010), (2465, 8422408), (3944, 5264005), (4930, 4211204), (9860, 2105602), (19720, 1052801)]