21951400

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{2677}}^1$

素因数の和:2734

約数の個数: 48

約数和(自身を含む): 52301340

約数和(自身を除く): 30349940

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 820, 1025, 1640, 2050, 2677, 4100, 5354, 8200, 10708, 13385, 21416, 26770, 53540, 66925, 107080, 109757, 133850, 219514, 267700, 439028, 535400, 548785, 878056, 1097570, 2195140, 2743925, 4390280, 5487850, 10975700, 21951400]

約数ペア:

[(1, 21951400), (2, 10975700), (4, 5487850), (5, 4390280), (8, 2743925), (10, 2195140), (20, 1097570), (25, 878056), (40, 548785), (41, 535400), (50, 439028), (82, 267700), (100, 219514), (164, 133850), (200, 109757), (205, 107080), (328, 66925), (410, 53540), (820, 26770), (1025, 21416), (1640, 13385), (2050, 10708), (2677, 8200), (4100, 5354)]