25818416

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:226

約数の個数: 80

約数和(自身を含む): 58329600

約数和(自身を除く): 32511184

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 47, 52, 76, 94, 104, 139, 152, 188, 208, 247, 278, 304, 376, 494, 556, 611, 752, 893, 988, 1112, 1222, 1786, 1807, 1976, 2224, 2444, 2641, 3572, 3614, 3952, 4888, 5282, 6533, 7144, 7228, 9776, 10564, 11609, 13066, 14288, 14456, 21128, 23218, 26132, 28912, 34333, 42256, 46436, 52264, 68666, 84929, 92872, 104528, 124127, 137332, 169858, 185744, 248254, 274664, 339716, 496508, 549328, 679432, 993016, 1358864, 1613651, 1986032, 3227302, 6454604, 12909208, 25818416]

約数ペア:

[(1, 25818416), (2, 12909208), (4, 6454604), (8, 3227302), (13, 1986032), (16, 1613651), (19, 1358864), (26, 993016), (38, 679432), (47, 549328), (52, 496508), (76, 339716), (94, 274664), (104, 248254), (139, 185744), (152, 169858), (188, 137332), (208, 124127), (247, 104528), (278, 92872), (304, 84929), (376, 68666), (494, 52264), (556, 46436), (611, 42256), (752, 34333), (893, 28912), (988, 26132), (1112, 23218), (1222, 21128), (1786, 14456), (1807, 14288), (1976, 13066), (2224, 11609), (2444, 10564), (2641, 9776), (3572, 7228), (3614, 7144), (3952, 6533), (4888, 5282)]