28017828

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{571}}^1$

素因数の和:657

約数の個数: 72

約数和(自身を含む): 74954880

約数和(自身を除く): 46937052

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 47, 58, 87, 94, 116, 141, 174, 188, 261, 282, 348, 423, 522, 564, 571, 846, 1044, 1142, 1363, 1692, 1713, 2284, 2726, 3426, 4089, 5139, 5452, 6852, 8178, 10278, 12267, 16356, 16559, 20556, 24534, 26837, 33118, 49068, 49677, 53674, 66236, 80511, 99354, 107348, 149031, 161022, 198708, 241533, 298062, 322044, 483066, 596124, 778273, 966132, 1556546, 2334819, 3113092, 4669638, 7004457, 9339276, 14008914, 28017828]

約数ペア:

[(1, 28017828), (2, 14008914), (3, 9339276), (4, 7004457), (6, 4669638), (9, 3113092), (12, 2334819), (18, 1556546), (29, 966132), (36, 778273), (47, 596124), (58, 483066), (87, 322044), (94, 298062), (116, 241533), (141, 198708), (174, 161022), (188, 149031), (261, 107348), (282, 99354), (348, 80511), (423, 66236), (522, 53674), (564, 49677), (571, 49068), (846, 33118), (1044, 26837), (1142, 24534), (1363, 20556), (1692, 16559), (1713, 16356), (2284, 12267), (2726, 10278), (3426, 8178), (4089, 6852), (5139, 5452)]