28971580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1$

素因数の和:307

約数の個数: 96

約数和(自身を含む): 72576000

約数和(自身を除く): 43604420

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 29, 38, 44, 55, 58, 76, 95, 110, 116, 145, 190, 209, 220, 239, 290, 319, 380, 418, 478, 551, 580, 638, 836, 956, 1045, 1102, 1195, 1276, 1595, 2090, 2204, 2390, 2629, 2755, 3190, 4180, 4541, 4780, 5258, 5510, 6061, 6380, 6931, 9082, 10516, 11020, 12122, 13145, 13862, 18164, 22705, 24244, 26290, 27724, 30305, 34655, 45410, 49951, 52580, 60610, 69310, 76241, 90820, 99902, 121220, 131689, 138620, 152482, 199804, 249755, 263378, 304964, 381205, 499510, 526756, 658445, 762410, 999020, 1316890, 1448579, 1524820, 2633780, 2897158, 5794316, 7242895, 14485790, 28971580]

約数ペア:

[(1, 28971580), (2, 14485790), (4, 7242895), (5, 5794316), (10, 2897158), (11, 2633780), (19, 1524820), (20, 1448579), (22, 1316890), (29, 999020), (38, 762410), (44, 658445), (55, 526756), (58, 499510), (76, 381205), (95, 304964), (110, 263378), (116, 249755), (145, 199804), (190, 152482), (209, 138620), (220, 131689), (239, 121220), (290, 99902), (319, 90820), (380, 76241), (418, 69310), (478, 60610), (551, 52580), (580, 49951), (638, 45410), (836, 34655), (956, 30305), (1045, 27724), (1102, 26290), (1195, 24244), (1276, 22705), (1595, 18164), (2090, 13862), (2204, 13145), (2390, 12122), (2629, 11020), (2755, 10516), (3190, 9082), (4180, 6931), (4541, 6380), (4780, 6061), (5258, 5510)]