28578394

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:175

約数の個数: 64

約数和(自身を含む): 53343360

約数和(自身を除く): 24764966

約数列:

[1, 2, 13, 17, 19, 26, 34, 38, 41, 82, 83, 166, 221, 247, 323, 442, 494, 533, 646, 697, 779, 1066, 1079, 1394, 1411, 1558, 1577, 2158, 2822, 3154, 3403, 4199, 6806, 8398, 9061, 10127, 13243, 18122, 18343, 20254, 20501, 26486, 26809, 36686, 41002, 44239, 53618, 57851, 64657, 88478, 115702, 129314, 172159, 344318, 348517, 697034, 752063, 840541, 1099169, 1504126, 1681082, 2198338, 14289197, 28578394]

約数ペア:

[(1, 28578394), (2, 14289197), (13, 2198338), (17, 1681082), (19, 1504126), (26, 1099169), (34, 840541), (38, 752063), (41, 697034), (82, 348517), (83, 344318), (166, 172159), (221, 129314), (247, 115702), (323, 88478), (442, 64657), (494, 57851), (533, 53618), (646, 44239), (697, 41002), (779, 36686), (1066, 26809), (1079, 26486), (1394, 20501), (1411, 20254), (1558, 18343), (1577, 18122), (2158, 13243), (2822, 10127), (3154, 9061), (3403, 8398), (4199, 6806)]