19801548

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1459}}^1$

素因数の和:1511

約数の個数: 72

約数和(自身を含む): 55801200

約数和(自身を除く): 35999652

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 29, 36, 39, 52, 58, 78, 87, 116, 117, 156, 174, 234, 261, 348, 377, 468, 522, 754, 1044, 1131, 1459, 1508, 2262, 2918, 3393, 4377, 4524, 5836, 6786, 8754, 13131, 13572, 17508, 18967, 26262, 37934, 42311, 52524, 56901, 75868, 84622, 113802, 126933, 169244, 170703, 227604, 253866, 341406, 380799, 507732, 550043, 682812, 761598, 1100086, 1523196, 1650129, 2200172, 3300258, 4950387, 6600516, 9900774, 19801548]

約数ペア:

[(1, 19801548), (2, 9900774), (3, 6600516), (4, 4950387), (6, 3300258), (9, 2200172), (12, 1650129), (13, 1523196), (18, 1100086), (26, 761598), (29, 682812), (36, 550043), (39, 507732), (52, 380799), (58, 341406), (78, 253866), (87, 227604), (116, 170703), (117, 169244), (156, 126933), (174, 113802), (234, 84622), (261, 75868), (348, 56901), (377, 52524), (468, 42311), (522, 37934), (754, 26262), (1044, 18967), (1131, 17508), (1459, 13572), (1508, 13131), (2262, 8754), (2918, 6786), (3393, 5836), (4377, 4524)]