198901240

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{2099}}^1$

素因数の和:2236

約数の個数: 64

約数和(自身を含む): 471744000

約数和(自身を除く): 272842760

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 103, 115, 184, 206, 230, 412, 460, 515, 824, 920, 1030, 2060, 2099, 2369, 4120, 4198, 4738, 8396, 9476, 10495, 11845, 16792, 18952, 20990, 23690, 41980, 47380, 48277, 83960, 94760, 96554, 193108, 216197, 241385, 386216, 432394, 482770, 864788, 965540, 1080985, 1729576, 1931080, 2161970, 4323940, 4972531, 8647880, 9945062, 19890124, 24862655, 39780248, 49725310, 99450620, 198901240]

約数ペア:

[(1, 198901240), (2, 99450620), (4, 49725310), (5, 39780248), (8, 24862655), (10, 19890124), (20, 9945062), (23, 8647880), (40, 4972531), (46, 4323940), (92, 2161970), (103, 1931080), (115, 1729576), (184, 1080985), (206, 965540), (230, 864788), (412, 482770), (460, 432394), (515, 386216), (824, 241385), (920, 216197), (1030, 193108), (2060, 96554), (2099, 94760), (2369, 83960), (4120, 48277), (4198, 47380), (4738, 41980), (8396, 23690), (9476, 20990), (10495, 18952), (11845, 16792)]