20807101670

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{2557}}^1$

素因数の和:2865

約数の個数: 64

約数和(自身を含む): 38760944256

約数和(自身を除く): 17953842586

約数列:

[1, 2, 5, 10, 71, 73, 142, 146, 157, 314, 355, 365, 710, 730, 785, 1570, 2557, 5114, 5183, 10366, 11147, 11461, 12785, 22294, 22922, 25570, 25915, 51830, 55735, 57305, 111470, 114610, 181547, 186661, 363094, 373322, 401449, 802898, 813731, 907735, 933305, 1627462, 1815470, 1866610, 2007245, 4014490, 4068655, 8137310, 13252931, 26505862, 28502879, 29305777, 57005758, 58611554, 66264655, 132529310, 142514395, 146528885, 285028790, 293057770, 2080710167, 4161420334, 10403550835, 20807101670]

約数ペア:

[(1, 20807101670), (2, 10403550835), (5, 4161420334), (10, 2080710167), (71, 293057770), (73, 285028790), (142, 146528885), (146, 142514395), (157, 132529310), (314, 66264655), (355, 58611554), (365, 57005758), (710, 29305777), (730, 28502879), (785, 26505862), (1570, 13252931), (2557, 8137310), (5114, 4068655), (5183, 4014490), (10366, 2007245), (11147, 1866610), (11461, 1815470), (12785, 1627462), (22294, 933305), (22922, 907735), (25570, 813731), (25915, 802898), (51830, 401449), (55735, 373322), (57305, 363094), (111470, 186661), (114610, 181547)]