405141748

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1\times {\mathrm{557}}^1$

素因数の和:904

約数の個数: 48

約数和(自身を含む): 790449408

約数和(自身を除く): 385307660

約数列:

[1, 2, 4, 11, 22, 44, 61, 122, 244, 271, 542, 557, 671, 1084, 1114, 1342, 2228, 2684, 2981, 5962, 6127, 11924, 12254, 16531, 24508, 33062, 33977, 66124, 67954, 135908, 150947, 181841, 301894, 363682, 373747, 603788, 727364, 747494, 1494988, 1660417, 3320834, 6641668, 9207767, 18415534, 36831068, 101285437, 202570874, 405141748]

約数ペア:

[(1, 405141748), (2, 202570874), (4, 101285437), (11, 36831068), (22, 18415534), (44, 9207767), (61, 6641668), (122, 3320834), (244, 1660417), (271, 1494988), (542, 747494), (557, 727364), (671, 603788), (1084, 373747), (1114, 363682), (1342, 301894), (2228, 181841), (2684, 150947), (2981, 135908), (5962, 67954), (6127, 66124), (11924, 33977), (12254, 33062), (16531, 24508)]