647500545

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{331}}^1\times {\mathrm{1499}}^1$

素因数の和:1870

約数の個数: 48

約数和(自身を含む): 1165320000

約数和(自身を除く): 517819455

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 331, 435, 993, 1305, 1499, 1655, 2979, 4497, 4965, 7495, 9599, 13491, 14895, 22485, 28797, 43471, 47995, 67455, 86391, 130413, 143985, 217355, 391239, 431955, 496169, 652065, 1488507, 1956195, 2480845, 4465521, 7442535, 14388901, 22327605, 43166703, 71944505, 129500109, 215833515, 647500545]

約数ペア:

[(1, 647500545), (3, 215833515), (5, 129500109), (9, 71944505), (15, 43166703), (29, 22327605), (45, 14388901), (87, 7442535), (145, 4465521), (261, 2480845), (331, 1956195), (435, 1488507), (993, 652065), (1305, 496169), (1499, 431955), (1655, 391239), (2979, 217355), (4497, 143985), (4965, 130413), (7495, 86391), (9599, 67455), (13491, 47995), (14895, 43471), (22485, 28797)]