20218392500

素因数分解:

$2^2\times 5^4\times {\mathrm{1033}}^1\times {\mathrm{7829}}^1$

素因数の和:8886

約数の個数: 60

約数和(自身を含む): 44262034740

約数和(自身を除く): 24043642240

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1033, 1250, 2066, 2500, 4132, 5165, 7829, 10330, 15658, 20660, 25825, 31316, 39145, 51650, 78290, 103300, 129125, 156580, 195725, 258250, 391450, 516500, 645625, 782900, 978625, 1291250, 1957250, 2582500, 3914500, 4893125, 8087357, 9786250, 16174714, 19572500, 32349428, 40436785, 80873570, 161747140, 202183925, 404367850, 808735700, 1010919625, 2021839250, 4043678500, 5054598125, 10109196250, 20218392500]

約数ペア:

[(1, 20218392500), (2, 10109196250), (4, 5054598125), (5, 4043678500), (10, 2021839250), (20, 1010919625), (25, 808735700), (50, 404367850), (100, 202183925), (125, 161747140), (250, 80873570), (500, 40436785), (625, 32349428), (1033, 19572500), (1250, 16174714), (2066, 9786250), (2500, 8087357), (4132, 4893125), (5165, 3914500), (7829, 2582500), (10330, 1957250), (15658, 1291250), (20660, 978625), (25825, 782900), (31316, 645625), (39145, 516500), (51650, 391450), (78290, 258250), (103300, 195725), (129125, 156580)]