20257384

素因数分解:

$2^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1667}}^1$

素因数の和:1718

約数の個数: 48

約数和(自身を含む): 45636480

約数和(自身を除く): 25379096

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 49, 56, 62, 98, 124, 196, 217, 248, 392, 434, 868, 1519, 1667, 1736, 3038, 3334, 6076, 6668, 11669, 12152, 13336, 23338, 46676, 51677, 81683, 93352, 103354, 163366, 206708, 326732, 361739, 413416, 653464, 723478, 1446956, 2532173, 2893912, 5064346, 10128692, 20257384]

約数ペア:

[(1, 20257384), (2, 10128692), (4, 5064346), (7, 2893912), (8, 2532173), (14, 1446956), (28, 723478), (31, 653464), (49, 413416), (56, 361739), (62, 326732), (98, 206708), (124, 163366), (196, 103354), (217, 93352), (248, 81683), (392, 51677), (434, 46676), (868, 23338), (1519, 13336), (1667, 12152), (1736, 11669), (3038, 6668), (3334, 6076)]