20190746480

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2835779}}^1$

素因数の和:2835881

約数の個数: 40

約数和(自身を含む): 47470957200

約数和(自身を除く): 27280210720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 2835779, 5671558, 11343116, 14178895, 22686232, 28357790, 45372464, 56715580, 113431160, 226862320, 252384331, 504768662, 1009537324, 1261921655, 2019074648, 2523843310, 4038149296, 5047686620, 10095373240, 20190746480]

約数ペア:

[(1, 20190746480), (2, 10095373240), (4, 5047686620), (5, 4038149296), (8, 2523843310), (10, 2019074648), (16, 1261921655), (20, 1009537324), (40, 504768662), (80, 252384331), (89, 226862320), (178, 113431160), (356, 56715580), (445, 45372464), (712, 28357790), (890, 22686232), (1424, 14178895), (1780, 11343116), (3560, 5671558), (7120, 2835779)]