1309365

素因数分解:

$3^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:131

約数の個数: 40

約数和(自身を含む): 2430648

約数和(自身を除く): 1121283

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 61, 81, 135, 159, 183, 265, 305, 405, 477, 549, 795, 915, 1431, 1647, 2385, 2745, 3233, 4293, 4941, 7155, 8235, 9699, 16165, 21465, 24705, 29097, 48495, 87291, 145485, 261873, 436455, 1309365]

約数ペア:

[(1, 1309365), (3, 436455), (5, 261873), (9, 145485), (15, 87291), (27, 48495), (45, 29097), (53, 24705), (61, 21465), (81, 16165), (135, 9699), (159, 8235), (183, 7155), (265, 4941), (305, 4293), (405, 3233), (477, 2745), (549, 2385), (795, 1647), (915, 1431)]