20670800

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1667}}^1$

素因数の和:1716

約数の個数: 60

約数和(自身を含む): 51294336

約数和(自身を除く): 30623536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1240, 1550, 1667, 2480, 3100, 3334, 6200, 6668, 8335, 12400, 13336, 16670, 26672, 33340, 41675, 51677, 66680, 83350, 103354, 133360, 166700, 206708, 258385, 333400, 413416, 516770, 666800, 826832, 1033540, 1291925, 2067080, 2583850, 4134160, 5167700, 10335400, 20670800]

約数ペア:

[(1, 20670800), (2, 10335400), (4, 5167700), (5, 4134160), (8, 2583850), (10, 2067080), (16, 1291925), (20, 1033540), (25, 826832), (31, 666800), (40, 516770), (50, 413416), (62, 333400), (80, 258385), (100, 206708), (124, 166700), (155, 133360), (200, 103354), (248, 83350), (310, 66680), (400, 51677), (496, 41675), (620, 33340), (775, 26672), (1240, 16670), (1550, 13336), (1667, 12400), (2480, 8335), (3100, 6668), (3334, 6200)]