20268720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28151}}^1$

素因数の和:28170

約数の個数: 60

約数和(自身を含む): 68071536

約数和(自身を除く): 47802816

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28151, 56302, 84453, 112604, 140755, 168906, 225208, 253359, 281510, 337812, 422265, 450416, 506718, 563020, 675624, 844530, 1013436, 1126040, 1266795, 1351248, 1689060, 2026872, 2252080, 2533590, 3378120, 4053744, 5067180, 6756240, 10134360, 20268720]

約数ペア:

[(1, 20268720), (2, 10134360), (3, 6756240), (4, 5067180), (5, 4053744), (6, 3378120), (8, 2533590), (9, 2252080), (10, 2026872), (12, 1689060), (15, 1351248), (16, 1266795), (18, 1126040), (20, 1013436), (24, 844530), (30, 675624), (36, 563020), (40, 506718), (45, 450416), (48, 422265), (60, 337812), (72, 281510), (80, 253359), (90, 225208), (120, 168906), (144, 140755), (180, 112604), (240, 84453), (360, 56302), (720, 28151)]