728015920

素因数分解:

$2^4\times 5^1\times {\mathrm{1117}}^1\times {\mathrm{8147}}^1$

素因数の和:9277

約数の個数: 40

約数和(自身を含む): 1694360304

約数和(自身を除く): 966344384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1117, 2234, 4468, 5585, 8147, 8936, 11170, 16294, 17872, 22340, 32588, 40735, 44680, 65176, 81470, 89360, 130352, 162940, 325880, 651760, 9100199, 18200398, 36400796, 45500995, 72801592, 91001990, 145603184, 182003980, 364007960, 728015920]

約数ペア:

[(1, 728015920), (2, 364007960), (4, 182003980), (5, 145603184), (8, 91001990), (10, 72801592), (16, 45500995), (20, 36400796), (40, 18200398), (80, 9100199), (1117, 651760), (2234, 325880), (4468, 162940), (5585, 130352), (8147, 89360), (8936, 81470), (11170, 65176), (16294, 44680), (17872, 40735), (22340, 32588)]