68872895

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{661}}^1$

素因数の和:915

約数の個数: 32

約数和(自身を含む): 102318720

約数和(自身を除く): 33445825

約数列:

[1, 5, 7, 13, 35, 65, 91, 229, 455, 661, 1145, 1603, 2977, 3305, 4627, 8015, 8593, 14885, 20839, 23135, 42965, 60151, 104195, 151369, 300755, 756845, 1059583, 1967797, 5297915, 9838985, 13774579, 68872895]

約数ペア:

[(1, 68872895), (5, 13774579), (7, 9838985), (13, 5297915), (35, 1967797), (65, 1059583), (91, 756845), (229, 300755), (455, 151369), (661, 104195), (1145, 60151), (1603, 42965), (2977, 23135), (3305, 20839), (4627, 14885), (8015, 8593)]