68420715

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:308

約数の個数: 64

約数和(自身を含む): 125798400

約数和(自身を除く): 57377685

約数列:

[1, 3, 5, 11, 15, 29, 33, 55, 79, 87, 145, 165, 181, 237, 319, 395, 435, 543, 869, 905, 957, 1185, 1595, 1991, 2291, 2607, 2715, 4345, 4785, 5249, 5973, 6873, 9955, 11455, 13035, 14299, 15747, 25201, 26245, 29865, 34365, 42897, 57739, 71495, 75603, 78735, 126005, 157289, 173217, 214485, 288695, 378015, 414671, 471867, 786445, 866085, 1244013, 2073355, 2359335, 4561381, 6220065, 13684143, 22806905, 68420715]

約数ペア:

[(1, 68420715), (3, 22806905), (5, 13684143), (11, 6220065), (15, 4561381), (29, 2359335), (33, 2073355), (55, 1244013), (79, 866085), (87, 786445), (145, 471867), (165, 414671), (181, 378015), (237, 288695), (319, 214485), (395, 173217), (435, 157289), (543, 126005), (869, 78735), (905, 75603), (957, 71495), (1185, 57739), (1595, 42897), (1991, 34365), (2291, 29865), (2607, 26245), (2715, 25201), (4345, 15747), (4785, 14299), (5249, 13035), (5973, 11455), (6873, 9955)]