18945900

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{2339}}^1$

素因数の和:2365

約数の個数: 90

約数和(自身を含む): 61441380

約数和(自身を除く): 42495480

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 135, 150, 162, 180, 225, 270, 300, 324, 405, 450, 540, 675, 810, 900, 1350, 1620, 2025, 2339, 2700, 4050, 4678, 7017, 8100, 9356, 11695, 14034, 21051, 23390, 28068, 35085, 42102, 46780, 58475, 63153, 70170, 84204, 105255, 116950, 126306, 140340, 175425, 189459, 210510, 233900, 252612, 315765, 350850, 378918, 421020, 526275, 631530, 701700, 757836, 947295, 1052550, 1263060, 1578825, 1894590, 2105100, 3157650, 3789180, 4736475, 6315300, 9472950, 18945900]

約数ペア:

[(1, 18945900), (2, 9472950), (3, 6315300), (4, 4736475), (5, 3789180), (6, 3157650), (9, 2105100), (10, 1894590), (12, 1578825), (15, 1263060), (18, 1052550), (20, 947295), (25, 757836), (27, 701700), (30, 631530), (36, 526275), (45, 421020), (50, 378918), (54, 350850), (60, 315765), (75, 252612), (81, 233900), (90, 210510), (100, 189459), (108, 175425), (135, 140340), (150, 126306), (162, 116950), (180, 105255), (225, 84204), (270, 70170), (300, 63153), (324, 58475), (405, 46780), (450, 42102), (540, 35085), (675, 28068), (810, 23390), (900, 21051), (1350, 14034), (1620, 11695), (2025, 9356), (2339, 8100), (2700, 7017), (4050, 4678)]