2018991940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{182549}}^1$

素因数の和:182644

約数の個数: 48

約数和(自身を含む): 4906944000

約数和(自身を除く): 2887952060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 2212, 2765, 5530, 11060, 182549, 365098, 730196, 912745, 1277843, 1825490, 2555686, 3650980, 5111372, 6389215, 12778430, 14421371, 25556860, 28842742, 57685484, 72106855, 100949597, 144213710, 201899194, 288427420, 403798388, 504747985, 1009495970, 2018991940]

約数ペア:

[(1, 2018991940), (2, 1009495970), (4, 504747985), (5, 403798388), (7, 288427420), (10, 201899194), (14, 144213710), (20, 100949597), (28, 72106855), (35, 57685484), (70, 28842742), (79, 25556860), (140, 14421371), (158, 12778430), (316, 6389215), (395, 5111372), (553, 3650980), (790, 2555686), (1106, 1825490), (1580, 1277843), (2212, 912745), (2765, 730196), (5530, 365098), (11060, 182549)]