20291340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{383}}^1\times {\mathrm{883}}^1$

素因数の和:1278

約数の個数: 48

約数和(自身を含む): 57028608

約数和(自身を除く): 36737268

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 383, 766, 883, 1149, 1532, 1766, 1915, 2298, 2649, 3532, 3830, 4415, 4596, 5298, 5745, 7660, 8830, 10596, 11490, 13245, 17660, 22980, 26490, 52980, 338189, 676378, 1014567, 1352756, 1690945, 2029134, 3381890, 4058268, 5072835, 6763780, 10145670, 20291340]

約数ペア:

[(1, 20291340), (2, 10145670), (3, 6763780), (4, 5072835), (5, 4058268), (6, 3381890), (10, 2029134), (12, 1690945), (15, 1352756), (20, 1014567), (30, 676378), (60, 338189), (383, 52980), (766, 26490), (883, 22980), (1149, 17660), (1532, 13245), (1766, 11490), (1915, 10596), (2298, 8830), (2649, 7660), (3532, 5745), (3830, 5298), (4415, 4596)]