638961876

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61843}}^1$

素因数の和:61901

約数の個数: 72

約数和(自身を含む): 1890942144

約数和(自身を除く): 1251980268

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 41, 42, 63, 82, 84, 123, 126, 164, 246, 252, 287, 369, 492, 574, 738, 861, 1148, 1476, 1722, 2583, 3444, 5166, 10332, 61843, 123686, 185529, 247372, 371058, 432901, 556587, 742116, 865802, 1113174, 1298703, 1731604, 2226348, 2535563, 2597406, 3896109, 5071126, 5194812, 7606689, 7792218, 10142252, 15213378, 15584436, 17748941, 22820067, 30426756, 35497882, 45640134, 53246823, 70995764, 91280268, 106493646, 159740469, 212987292, 319480938, 638961876]

約数ペア:

[(1, 638961876), (2, 319480938), (3, 212987292), (4, 159740469), (6, 106493646), (7, 91280268), (9, 70995764), (12, 53246823), (14, 45640134), (18, 35497882), (21, 30426756), (28, 22820067), (36, 17748941), (41, 15584436), (42, 15213378), (63, 10142252), (82, 7792218), (84, 7606689), (123, 5194812), (126, 5071126), (164, 3896109), (246, 2597406), (252, 2535563), (287, 2226348), (369, 1731604), (492, 1298703), (574, 1113174), (738, 865802), (861, 742116), (1148, 556587), (1476, 432901), (1722, 371058), (2583, 247372), (3444, 185529), (5166, 123686), (10332, 61843)]