31490706

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:331

約数の個数: 64

約数和(自身を含む): 71406720

約数和(自身を除く): 39916014

約数列:

[1, 2, 3, 6, 13, 26, 39, 41, 43, 78, 82, 86, 123, 129, 229, 246, 258, 458, 533, 559, 687, 1066, 1118, 1374, 1599, 1677, 1763, 2977, 3198, 3354, 3526, 5289, 5954, 8931, 9389, 9847, 10578, 17862, 18778, 19694, 22919, 28167, 29541, 45838, 56334, 59082, 68757, 122057, 128011, 137514, 244114, 256022, 366171, 384033, 403727, 732342, 768066, 807454, 1211181, 2422362, 5248451, 10496902, 15745353, 31490706]

約数ペア:

[(1, 31490706), (2, 15745353), (3, 10496902), (6, 5248451), (13, 2422362), (26, 1211181), (39, 807454), (41, 768066), (43, 732342), (78, 403727), (82, 384033), (86, 366171), (123, 256022), (129, 244114), (229, 137514), (246, 128011), (258, 122057), (458, 68757), (533, 59082), (559, 56334), (687, 45838), (1066, 29541), (1118, 28167), (1374, 22919), (1599, 19694), (1677, 18778), (1763, 17862), (2977, 10578), (3198, 9847), (3354, 9389), (3526, 8931), (5289, 5954)]