28073565

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1297}}^1$

素因数の和:1358

約数の個数: 48

約数和(自身を含む): 53861808

約数和(自身を除く): 25788243

約数列:

[1, 3, 5, 9, 13, 15, 37, 39, 45, 65, 111, 117, 185, 195, 333, 481, 555, 585, 1297, 1443, 1665, 2405, 3891, 4329, 6485, 7215, 11673, 16861, 19455, 21645, 47989, 50583, 58365, 84305, 143967, 151749, 239945, 252915, 431901, 623857, 719835, 758745, 1871571, 2159505, 3119285, 5614713, 9357855, 28073565]

約数ペア:

[(1, 28073565), (3, 9357855), (5, 5614713), (9, 3119285), (13, 2159505), (15, 1871571), (37, 758745), (39, 719835), (45, 623857), (65, 431901), (111, 252915), (117, 239945), (185, 151749), (195, 143967), (333, 84305), (481, 58365), (555, 50583), (585, 47989), (1297, 21645), (1443, 19455), (1665, 16861), (2405, 11673), (3891, 7215), (4329, 6485)]