12671780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{241}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 29272320

約数和(自身を除く): 16600540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 239, 241, 478, 482, 956, 964, 1195, 1205, 2390, 2410, 2629, 2651, 4780, 4820, 5258, 5302, 10516, 10604, 13145, 13255, 26290, 26510, 52580, 53020, 57599, 115198, 230396, 287995, 575990, 633589, 1151980, 1267178, 2534356, 3167945, 6335890, 12671780]

約数ペア:

[(1, 12671780), (2, 6335890), (4, 3167945), (5, 2534356), (10, 1267178), (11, 1151980), (20, 633589), (22, 575990), (44, 287995), (55, 230396), (110, 115198), (220, 57599), (239, 53020), (241, 52580), (478, 26510), (482, 26290), (956, 13255), (964, 13145), (1195, 10604), (1205, 10516), (2390, 5302), (2410, 5258), (2629, 4820), (2651, 4780)]