64121420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{1307}}^1$

素因数の和:1550

約数の個数: 48

約数和(自身を含む): 147667968

約数和(自身を除く): 83546548

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 223, 446, 892, 1115, 1307, 2230, 2453, 2614, 4460, 4906, 5228, 6535, 9812, 12265, 13070, 14377, 24530, 26140, 28754, 49060, 57508, 71885, 143770, 287540, 291461, 582922, 1165844, 1457305, 2914610, 3206071, 5829220, 6412142, 12824284, 16030355, 32060710, 64121420]

約数ペア:

[(1, 64121420), (2, 32060710), (4, 16030355), (5, 12824284), (10, 6412142), (11, 5829220), (20, 3206071), (22, 2914610), (44, 1457305), (55, 1165844), (110, 582922), (220, 291461), (223, 287540), (446, 143770), (892, 71885), (1115, 57508), (1307, 49060), (2230, 28754), (2453, 26140), (2614, 24530), (4460, 14377), (4906, 13070), (5228, 12265), (6535, 9812)]