2688790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:113

約数の個数: 48

約数和(自身を含む): 5507568

約数和(自身を除く): 2818778

約数列:

[1, 2, 5, 10, 13, 26, 37, 43, 65, 74, 86, 130, 169, 185, 215, 338, 370, 430, 481, 559, 845, 962, 1118, 1591, 1690, 2405, 2795, 3182, 4810, 5590, 6253, 7267, 7955, 12506, 14534, 15910, 20683, 31265, 36335, 41366, 62530, 72670, 103415, 206830, 268879, 537758, 1344395, 2688790]

約数ペア:

[(1, 2688790), (2, 1344395), (5, 537758), (10, 268879), (13, 206830), (26, 103415), (37, 72670), (43, 62530), (65, 41366), (74, 36335), (86, 31265), (130, 20683), (169, 15910), (185, 14534), (215, 12506), (338, 7955), (370, 7267), (430, 6253), (481, 5590), (559, 4810), (845, 3182), (962, 2795), (1118, 2405), (1591, 1690)]