15660120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:305

約数の個数: 128

約数和(自身を含む): 54512640

約数和(自身を除く): 38852520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 103, 105, 120, 140, 168, 181, 206, 210, 280, 309, 362, 412, 420, 515, 543, 618, 721, 724, 824, 840, 905, 1030, 1086, 1236, 1267, 1442, 1448, 1545, 1810, 2060, 2163, 2172, 2472, 2534, 2715, 2884, 3090, 3605, 3620, 3801, 4120, 4326, 4344, 5068, 5430, 5768, 6180, 6335, 7210, 7240, 7602, 8652, 10136, 10815, 10860, 12360, 12670, 14420, 15204, 17304, 18643, 19005, 21630, 21720, 25340, 28840, 30408, 37286, 38010, 43260, 50680, 55929, 74572, 76020, 86520, 93215, 111858, 130501, 149144, 152040, 186430, 223716, 261002, 279645, 372860, 391503, 447432, 522004, 559290, 652505, 745720, 783006, 1044008, 1118580, 1305010, 1566012, 1957515, 2237160, 2610020, 3132024, 3915030, 5220040, 7830060, 15660120]

約数ペア:

[(1, 15660120), (2, 7830060), (3, 5220040), (4, 3915030), (5, 3132024), (6, 2610020), (7, 2237160), (8, 1957515), (10, 1566012), (12, 1305010), (14, 1118580), (15, 1044008), (20, 783006), (21, 745720), (24, 652505), (28, 559290), (30, 522004), (35, 447432), (40, 391503), (42, 372860), (56, 279645), (60, 261002), (70, 223716), (84, 186430), (103, 152040), (105, 149144), (120, 130501), (140, 111858), (168, 93215), (181, 86520), (206, 76020), (210, 74572), (280, 55929), (309, 50680), (362, 43260), (412, 38010), (420, 37286), (515, 30408), (543, 28840), (618, 25340), (721, 21720), (724, 21630), (824, 19005), (840, 18643), (905, 17304), (1030, 15204), (1086, 14420), (1236, 12670), (1267, 12360), (1442, 10860), (1448, 10815), (1545, 10136), (1810, 8652), (2060, 7602), (2163, 7240), (2172, 7210), (2472, 6335), (2534, 6180), (2715, 5768), (2884, 5430), (3090, 5068), (3605, 4344), (3620, 4326), (3801, 4120)]