21696720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90403}}^1$

素因数の和:90419

約数の個数: 40

約数和(自身を含む): 67260576

約数和(自身を除く): 45563856

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90403, 180806, 271209, 361612, 452015, 542418, 723224, 904030, 1084836, 1356045, 1446448, 1808060, 2169672, 2712090, 3616120, 4339344, 5424180, 7232240, 10848360, 21696720]

約数ペア:

[(1, 21696720), (2, 10848360), (3, 7232240), (4, 5424180), (5, 4339344), (6, 3616120), (8, 2712090), (10, 2169672), (12, 1808060), (15, 1446448), (16, 1356045), (20, 1084836), (24, 904030), (30, 723224), (40, 542418), (48, 452015), (60, 361612), (80, 271209), (120, 180806), (240, 90403)]