213223670

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{739}}^1$

素因数の和:861

約数の個数: 64

約数和(自身を含む): 436043520

約数和(自身を除く): 222819850

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 61, 86, 110, 122, 215, 305, 430, 473, 610, 671, 739, 946, 1342, 1478, 2365, 2623, 3355, 3695, 4730, 5246, 6710, 7390, 8129, 13115, 16258, 26230, 28853, 31777, 40645, 45079, 57706, 63554, 81290, 90158, 144265, 158885, 225395, 288530, 317770, 349547, 450790, 495869, 699094, 991738, 1747735, 1938397, 2479345, 3495470, 3876794, 4958690, 9691985, 19383970, 21322367, 42644734, 106611835, 213223670]

約数ペア:

[(1, 213223670), (2, 106611835), (5, 42644734), (10, 21322367), (11, 19383970), (22, 9691985), (43, 4958690), (55, 3876794), (61, 3495470), (86, 2479345), (110, 1938397), (122, 1747735), (215, 991738), (305, 699094), (430, 495869), (473, 450790), (610, 349547), (671, 317770), (739, 288530), (946, 225395), (1342, 158885), (1478, 144265), (2365, 90158), (2623, 81290), (3355, 63554), (3695, 57706), (4730, 45079), (5246, 40645), (6710, 31777), (7390, 28853), (8129, 26230), (13115, 16258)]