20042750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{881}}^1$

素因数の和:918

約数の個数: 64

約数和(自身を含む): 46230912

約数和(自身を除く): 26188162

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 125, 130, 175, 182, 250, 325, 350, 455, 650, 875, 881, 910, 1625, 1750, 1762, 2275, 3250, 4405, 4550, 6167, 8810, 11375, 11453, 12334, 22025, 22750, 22906, 30835, 44050, 57265, 61670, 80171, 110125, 114530, 154175, 160342, 220250, 286325, 308350, 400855, 572650, 770875, 801710, 1431625, 1541750, 2004275, 2863250, 4008550, 10021375, 20042750]

約数ペア:

[(1, 20042750), (2, 10021375), (5, 4008550), (7, 2863250), (10, 2004275), (13, 1541750), (14, 1431625), (25, 801710), (26, 770875), (35, 572650), (50, 400855), (65, 308350), (70, 286325), (91, 220250), (125, 160342), (130, 154175), (175, 114530), (182, 110125), (250, 80171), (325, 61670), (350, 57265), (455, 44050), (650, 30835), (875, 22906), (881, 22750), (910, 22025), (1625, 12334), (1750, 11453), (1762, 11375), (2275, 8810), (3250, 6167), (4405, 4550)]