19996290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5167}}^1$

素因数の和:5223

約数の個数: 48

約数和(自身を含む): 53209728

約数和(自身を除く): 33213438

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 645, 774, 1290, 1935, 3870, 5167, 10334, 15501, 25835, 31002, 46503, 51670, 77505, 93006, 155010, 222181, 232515, 444362, 465030, 666543, 1110905, 1333086, 1999629, 2221810, 3332715, 3999258, 6665430, 9998145, 19996290]

約数ペア:

[(1, 19996290), (2, 9998145), (3, 6665430), (5, 3999258), (6, 3332715), (9, 2221810), (10, 1999629), (15, 1333086), (18, 1110905), (30, 666543), (43, 465030), (45, 444362), (86, 232515), (90, 222181), (129, 155010), (215, 93006), (258, 77505), (387, 51670), (430, 46503), (645, 31002), (774, 25835), (1290, 15501), (1935, 10334), (3870, 5167)]