20235760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13313}}^1$

素因数の和:13345

約数の個数: 40

約数和(自身を含む): 49528080

約数和(自身を除く): 29292320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13313, 26626, 53252, 66565, 106504, 133130, 213008, 252947, 266260, 505894, 532520, 1011788, 1065040, 1264735, 2023576, 2529470, 4047152, 5058940, 10117880, 20235760]

約数ペア:

[(1, 20235760), (2, 10117880), (4, 5058940), (5, 4047152), (8, 2529470), (10, 2023576), (16, 1264735), (19, 1065040), (20, 1011788), (38, 532520), (40, 505894), (76, 266260), (80, 252947), (95, 213008), (152, 133130), (190, 106504), (304, 66565), (380, 53252), (760, 26626), (1520, 13313)]