78903420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1327}}^1$

素因数の和:2330

約数の個数: 48

約数和(自身を含む): 221319168

約数和(自身を除く): 142415748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 991, 1327, 1982, 2654, 2973, 3964, 3981, 4955, 5308, 5946, 6635, 7962, 9910, 11892, 13270, 14865, 15924, 19820, 19905, 26540, 29730, 39810, 59460, 79620, 1315057, 2630114, 3945171, 5260228, 6575285, 7890342, 13150570, 15780684, 19725855, 26301140, 39451710, 78903420]

約数ペア:

[(1, 78903420), (2, 39451710), (3, 26301140), (4, 19725855), (5, 15780684), (6, 13150570), (10, 7890342), (12, 6575285), (15, 5260228), (20, 3945171), (30, 2630114), (60, 1315057), (991, 79620), (1327, 59460), (1982, 39810), (2654, 29730), (2973, 26540), (3964, 19905), (3981, 19820), (4955, 15924), (5308, 14865), (5946, 13270), (6635, 11892), (7962, 9910)]