20764872

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{353}}^1$

素因数の和:427

約数の個数: 96

約数和(自身を含む): 60746400

約数和(自身を除く): 39981528

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 43, 57, 72, 76, 86, 114, 129, 152, 171, 172, 228, 258, 342, 344, 353, 387, 456, 516, 684, 706, 774, 817, 1032, 1059, 1368, 1412, 1548, 1634, 2118, 2451, 2824, 3096, 3177, 3268, 4236, 4902, 6354, 6536, 6707, 7353, 8472, 9804, 12708, 13414, 14706, 15179, 19608, 20121, 25416, 26828, 29412, 30358, 40242, 45537, 53656, 58824, 60363, 60716, 80484, 91074, 120726, 121432, 136611, 160968, 182148, 241452, 273222, 288401, 364296, 482904, 546444, 576802, 865203, 1092888, 1153604, 1730406, 2307208, 2595609, 3460812, 5191218, 6921624, 10382436, 20764872]

約数ペア:

[(1, 20764872), (2, 10382436), (3, 6921624), (4, 5191218), (6, 3460812), (8, 2595609), (9, 2307208), (12, 1730406), (18, 1153604), (19, 1092888), (24, 865203), (36, 576802), (38, 546444), (43, 482904), (57, 364296), (72, 288401), (76, 273222), (86, 241452), (114, 182148), (129, 160968), (152, 136611), (171, 121432), (172, 120726), (228, 91074), (258, 80484), (342, 60716), (344, 60363), (353, 58824), (387, 53656), (456, 45537), (516, 40242), (684, 30358), (706, 29412), (774, 26828), (817, 25416), (1032, 20121), (1059, 19608), (1368, 15179), (1412, 14706), (1548, 13414), (1634, 12708), (2118, 9804), (2451, 8472), (2824, 7353), (3096, 6707), (3177, 6536), (3268, 6354), (4236, 4902)]