25681240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:197

約数の個数: 96

約数和(自身を含む): 65221200

約数和(自身を除く): 39539960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 104, 116, 130, 131, 145, 169, 232, 260, 262, 290, 338, 377, 520, 524, 580, 655, 676, 754, 845, 1048, 1160, 1310, 1352, 1508, 1690, 1703, 1885, 2620, 3016, 3380, 3406, 3770, 3799, 4901, 5240, 6760, 6812, 7540, 7598, 8515, 9802, 13624, 15080, 15196, 17030, 18995, 19604, 22139, 24505, 30392, 34060, 37990, 39208, 44278, 49010, 49387, 68120, 75980, 88556, 98020, 98774, 110695, 151960, 177112, 196040, 197548, 221390, 246935, 395096, 442780, 493870, 642031, 885560, 987740, 1284062, 1975480, 2568124, 3210155, 5136248, 6420310, 12840620, 25681240]

約数ペア:

[(1, 25681240), (2, 12840620), (4, 6420310), (5, 5136248), (8, 3210155), (10, 2568124), (13, 1975480), (20, 1284062), (26, 987740), (29, 885560), (40, 642031), (52, 493870), (58, 442780), (65, 395096), (104, 246935), (116, 221390), (130, 197548), (131, 196040), (145, 177112), (169, 151960), (232, 110695), (260, 98774), (262, 98020), (290, 88556), (338, 75980), (377, 68120), (520, 49387), (524, 49010), (580, 44278), (655, 39208), (676, 37990), (754, 34060), (845, 30392), (1048, 24505), (1160, 22139), (1310, 19604), (1352, 18995), (1508, 17030), (1690, 15196), (1703, 15080), (1885, 13624), (2620, 9802), (3016, 8515), (3380, 7598), (3406, 7540), (3770, 6812), (3799, 6760), (4901, 5240)]