78141915

素因数分解:

$3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3163}}^1$

素因数の和:3241

約数の個数: 40

約数和(自身を含む): 142417968

約数和(自身を除く): 64276053

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 81, 135, 183, 305, 405, 549, 915, 1647, 2745, 3163, 4941, 8235, 9489, 15815, 24705, 28467, 47445, 85401, 142335, 192943, 256203, 427005, 578829, 964715, 1281015, 1736487, 2894145, 5209461, 8682435, 15628383, 26047305, 78141915]

約数ペア:

[(1, 78141915), (3, 26047305), (5, 15628383), (9, 8682435), (15, 5209461), (27, 2894145), (45, 1736487), (61, 1281015), (81, 964715), (135, 578829), (183, 427005), (305, 256203), (405, 192943), (549, 142335), (915, 85401), (1647, 47445), (2745, 28467), (3163, 24705), (4941, 15815), (8235, 9489)]