155181825

素因数分解:

$3^4\times 5^2\times {\mathrm{197}}^1\times {\mathrm{389}}^1$

素因数の和:608

約数の個数: 60

約数和(自身を含む): 289652220

約数和(自身を除く): 134470395

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 197, 225, 389, 405, 591, 675, 985, 1167, 1773, 1945, 2025, 2955, 3501, 4925, 5319, 5835, 8865, 9725, 10503, 14775, 15957, 17505, 26595, 29175, 31509, 44325, 52515, 76633, 79785, 87525, 132975, 157545, 229899, 262575, 383165, 398925, 689697, 787725, 1149495, 1915825, 2069091, 3448485, 5747475, 6207273, 10345455, 17242425, 31036365, 51727275, 155181825]

約数ペア:

[(1, 155181825), (3, 51727275), (5, 31036365), (9, 17242425), (15, 10345455), (25, 6207273), (27, 5747475), (45, 3448485), (75, 2069091), (81, 1915825), (135, 1149495), (197, 787725), (225, 689697), (389, 398925), (405, 383165), (591, 262575), (675, 229899), (985, 157545), (1167, 132975), (1773, 87525), (1945, 79785), (2025, 76633), (2955, 52515), (3501, 44325), (4925, 31509), (5319, 29175), (5835, 26595), (8865, 17505), (9725, 15957), (10503, 14775)]