81242860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{3191}}^1$

素因数の和:3286

約数の個数: 48

約数和(自身を含む): 182327040

約数和(自身を除く): 101084180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 67, 76, 95, 134, 190, 268, 335, 380, 670, 1273, 1340, 2546, 3191, 5092, 6365, 6382, 12730, 12764, 15955, 25460, 31910, 60629, 63820, 121258, 213797, 242516, 303145, 427594, 606290, 855188, 1068985, 1212580, 2137970, 4062143, 4275940, 8124286, 16248572, 20310715, 40621430, 81242860]

約数ペア:

[(1, 81242860), (2, 40621430), (4, 20310715), (5, 16248572), (10, 8124286), (19, 4275940), (20, 4062143), (38, 2137970), (67, 1212580), (76, 1068985), (95, 855188), (134, 606290), (190, 427594), (268, 303145), (335, 242516), (380, 213797), (670, 121258), (1273, 63820), (1340, 60629), (2546, 31910), (3191, 25460), (5092, 15955), (6365, 12764), (6382, 12730)]