19953720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1289}}^1$

素因数の和:1349

約数の個数: 96

約数和(自身を含む): 66409200

約数和(自身を除く): 46455480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 43, 45, 60, 72, 86, 90, 120, 129, 172, 180, 215, 258, 344, 360, 387, 430, 516, 645, 774, 860, 1032, 1289, 1290, 1548, 1720, 1935, 2578, 2580, 3096, 3867, 3870, 5156, 5160, 6445, 7734, 7740, 10312, 11601, 12890, 15468, 15480, 19335, 23202, 25780, 30936, 38670, 46404, 51560, 55427, 58005, 77340, 92808, 110854, 116010, 154680, 166281, 221708, 232020, 277135, 332562, 443416, 464040, 498843, 554270, 665124, 831405, 997686, 1108540, 1330248, 1662810, 1995372, 2217080, 2494215, 3325620, 3990744, 4988430, 6651240, 9976860, 19953720]

約数ペア:

[(1, 19953720), (2, 9976860), (3, 6651240), (4, 4988430), (5, 3990744), (6, 3325620), (8, 2494215), (9, 2217080), (10, 1995372), (12, 1662810), (15, 1330248), (18, 1108540), (20, 997686), (24, 831405), (30, 665124), (36, 554270), (40, 498843), (43, 464040), (45, 443416), (60, 332562), (72, 277135), (86, 232020), (90, 221708), (120, 166281), (129, 154680), (172, 116010), (180, 110854), (215, 92808), (258, 77340), (344, 58005), (360, 55427), (387, 51560), (430, 46404), (516, 38670), (645, 30936), (774, 25780), (860, 23202), (1032, 19335), (1289, 15480), (1290, 15468), (1548, 12890), (1720, 11601), (1935, 10312), (2578, 7740), (2580, 7734), (3096, 6445), (3867, 5160), (3870, 5156)]