28187432

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1249}}^1$

素因数の和:1306

約数の個数: 64

約数和(自身を含む): 67200000

約数和(自身を除く): 39012568

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 52, 56, 62, 91, 104, 124, 182, 217, 248, 364, 403, 434, 728, 806, 868, 1249, 1612, 1736, 2498, 2821, 3224, 4996, 5642, 8743, 9992, 11284, 16237, 17486, 22568, 32474, 34972, 38719, 64948, 69944, 77438, 113659, 129896, 154876, 227318, 271033, 309752, 454636, 503347, 542066, 909272, 1006694, 1084132, 2013388, 2168264, 3523429, 4026776, 7046858, 14093716, 28187432]

約数ペア:

[(1, 28187432), (2, 14093716), (4, 7046858), (7, 4026776), (8, 3523429), (13, 2168264), (14, 2013388), (26, 1084132), (28, 1006694), (31, 909272), (52, 542066), (56, 503347), (62, 454636), (91, 309752), (104, 271033), (124, 227318), (182, 154876), (217, 129896), (248, 113659), (364, 77438), (403, 69944), (434, 64948), (728, 38719), (806, 34972), (868, 32474), (1249, 22568), (1612, 17486), (1736, 16237), (2498, 11284), (2821, 9992), (3224, 8743), (4996, 5642)]