20835400

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5483}}^1$

素因数の和:5518

約数の個数: 48

約数和(自身を含む): 51001200

約数和(自身を除く): 30165800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 5483, 10966, 21932, 27415, 43864, 54830, 104177, 109660, 137075, 208354, 219320, 274150, 416708, 520885, 548300, 833416, 1041770, 1096600, 2083540, 2604425, 4167080, 5208850, 10417700, 20835400]

約数ペア:

[(1, 20835400), (2, 10417700), (4, 5208850), (5, 4167080), (8, 2604425), (10, 2083540), (19, 1096600), (20, 1041770), (25, 833416), (38, 548300), (40, 520885), (50, 416708), (76, 274150), (95, 219320), (100, 208354), (152, 137075), (190, 109660), (200, 104177), (380, 54830), (475, 43864), (760, 27415), (950, 21932), (1900, 10966), (3800, 5483)]