990222430

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{50599}}^1$

素因数の和:50728

約数の個数: 32

約数和(自身を含む): 1894464000

約数和(自身を除く): 904241570

約数列:

[1, 2, 5, 10, 19, 38, 95, 103, 190, 206, 515, 1030, 1957, 3914, 9785, 19570, 50599, 101198, 252995, 505990, 961381, 1922762, 4806905, 5211697, 9613810, 10423394, 26058485, 52116970, 99022243, 198044486, 495111215, 990222430]

約数ペア:

[(1, 990222430), (2, 495111215), (5, 198044486), (10, 99022243), (19, 52116970), (38, 26058485), (95, 10423394), (103, 9613810), (190, 5211697), (206, 4806905), (515, 1922762), (1030, 961381), (1957, 505990), (3914, 252995), (9785, 101198), (19570, 50599)]