420199647

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{241}}^1\times {\mathrm{409}}^1$

素因数の和:696

約数の個数: 48

約数和(自身を含む): 678664800

約数和(自身を除く): 258465153

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 241, 409, 609, 723, 1227, 1421, 1687, 2863, 4263, 5061, 6989, 8589, 11809, 11861, 20041, 20967, 35427, 35583, 48923, 60123, 83027, 98569, 146769, 249081, 295707, 342461, 581189, 689983, 1027383, 1743567, 2069949, 2858501, 4829881, 8575503, 14489643, 20009507, 60028521, 140066549, 420199647]

約数ペア:

[(1, 420199647), (3, 140066549), (7, 60028521), (21, 20009507), (29, 14489643), (49, 8575503), (87, 4829881), (147, 2858501), (203, 2069949), (241, 1743567), (409, 1027383), (609, 689983), (723, 581189), (1227, 342461), (1421, 295707), (1687, 249081), (2863, 146769), (4263, 98569), (5061, 83027), (6989, 60123), (8589, 48923), (11809, 35583), (11861, 35427), (20041, 20967)]