20217900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{3547}}^1$

素因数の和:3583

約数の個数: 72

約数和(自身を含む): 61593280

約数和(自身を除く): 41375380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 25, 30, 38, 50, 57, 60, 75, 76, 95, 100, 114, 150, 190, 228, 285, 300, 380, 475, 570, 950, 1140, 1425, 1900, 2850, 3547, 5700, 7094, 10641, 14188, 17735, 21282, 35470, 42564, 53205, 67393, 70940, 88675, 106410, 134786, 177350, 202179, 212820, 266025, 269572, 336965, 354700, 404358, 532050, 673930, 808716, 1010895, 1064100, 1347860, 1684825, 2021790, 3369650, 4043580, 5054475, 6739300, 10108950, 20217900]

約数ペア:

[(1, 20217900), (2, 10108950), (3, 6739300), (4, 5054475), (5, 4043580), (6, 3369650), (10, 2021790), (12, 1684825), (15, 1347860), (19, 1064100), (20, 1010895), (25, 808716), (30, 673930), (38, 532050), (50, 404358), (57, 354700), (60, 336965), (75, 269572), (76, 266025), (95, 212820), (100, 202179), (114, 177350), (150, 134786), (190, 106410), (228, 88675), (285, 70940), (300, 67393), (380, 53205), (475, 42564), (570, 35470), (950, 21282), (1140, 17735), (1425, 14188), (1900, 10641), (2850, 7094), (3547, 5700)]