354578620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{51991}}^1$

素因数の和:52042

約数の個数: 48

約数和(自身を含む): 838526976

約数和(自身を除く): 483948356

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820, 51991, 103982, 207964, 259955, 519910, 571901, 1039820, 1143802, 1611721, 2287604, 2859505, 3223442, 5719010, 6446884, 8058605, 11438020, 16117210, 17728931, 32234420, 35457862, 70915724, 88644655, 177289310, 354578620]

約数ペア:

[(1, 354578620), (2, 177289310), (4, 88644655), (5, 70915724), (10, 35457862), (11, 32234420), (20, 17728931), (22, 16117210), (31, 11438020), (44, 8058605), (55, 6446884), (62, 5719010), (110, 3223442), (124, 2859505), (155, 2287604), (220, 1611721), (310, 1143802), (341, 1039820), (620, 571901), (682, 519910), (1364, 259955), (1705, 207964), (3410, 103982), (6820, 51991)]