19579960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11939}}^1$

素因数の和:11991

約数の個数: 32

約数和(自身を含む): 45133200

約数和(自身を除く): 25553240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 11939, 23878, 47756, 59695, 95512, 119390, 238780, 477560, 489499, 978998, 1957996, 2447495, 3915992, 4894990, 9789980, 19579960]

約数ペア:

[(1, 19579960), (2, 9789980), (4, 4894990), (5, 3915992), (8, 2447495), (10, 1957996), (20, 978998), (40, 489499), (41, 477560), (82, 238780), (164, 119390), (205, 95512), (328, 59695), (410, 47756), (820, 23878), (1640, 11939)]