2007990020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{571}}^1\times {\mathrm{10343}}^1$

素因数の和:10940

約数の個数: 48

約数和(自身を含む): 4473076608

約数和(自身を除く): 2465086588

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 571, 1142, 2284, 2855, 5710, 9707, 10343, 11420, 19414, 20686, 38828, 41372, 48535, 51715, 97070, 103430, 175831, 194140, 206860, 351662, 703324, 879155, 1758310, 3516620, 5905853, 11811706, 23623412, 29529265, 59058530, 100399501, 118117060, 200799002, 401598004, 501997505, 1003995010, 2007990020]

約数ペア:

[(1, 2007990020), (2, 1003995010), (4, 501997505), (5, 401598004), (10, 200799002), (17, 118117060), (20, 100399501), (34, 59058530), (68, 29529265), (85, 23623412), (170, 11811706), (340, 5905853), (571, 3516620), (1142, 1758310), (2284, 879155), (2855, 703324), (5710, 351662), (9707, 206860), (10343, 194140), (11420, 175831), (19414, 103430), (20686, 97070), (38828, 51715), (41372, 48535)]