18448220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{421}}^1$

素因数の和:750

約数の個数: 48

約数和(自身を含む): 44522688

約数和(自身を除く): 26074468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 313, 421, 626, 842, 1252, 1565, 1684, 2105, 2191, 2947, 3130, 4210, 4382, 5894, 6260, 8420, 8764, 10955, 11788, 14735, 21910, 29470, 43820, 58940, 131773, 263546, 527092, 658865, 922411, 1317730, 1844822, 2635460, 3689644, 4612055, 9224110, 18448220]

約数ペア:

[(1, 18448220), (2, 9224110), (4, 4612055), (5, 3689644), (7, 2635460), (10, 1844822), (14, 1317730), (20, 922411), (28, 658865), (35, 527092), (70, 263546), (140, 131773), (313, 58940), (421, 43820), (626, 29470), (842, 21910), (1252, 14735), (1565, 11788), (1684, 10955), (2105, 8764), (2191, 8420), (2947, 6260), (3130, 5894), (4210, 4382)]