28122480

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:439

約数の個数: 120

約数和(自身を含む): 95462640

約数和(自身を除く): 67340160

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, 139, 144, 180, 240, 278, 281, 360, 417, 556, 562, 695, 720, 834, 843, 1112, 1124, 1251, 1390, 1405, 1668, 1686, 2085, 2224, 2248, 2502, 2529, 2780, 2810, 3336, 3372, 4170, 4215, 4496, 5004, 5058, 5560, 5620, 6255, 6672, 6744, 8340, 8430, 10008, 10116, 11120, 11240, 12510, 12645, 13488, 16680, 16860, 20016, 20232, 22480, 25020, 25290, 33360, 33720, 39059, 40464, 50040, 50580, 67440, 78118, 100080, 101160, 117177, 156236, 195295, 202320, 234354, 312472, 351531, 390590, 468708, 585885, 624944, 703062, 781180, 937416, 1171770, 1406124, 1562360, 1757655, 1874832, 2343540, 2812248, 3124720, 3515310, 4687080, 5624496, 7030620, 9374160, 14061240, 28122480]

約数ペア:

[(1, 28122480), (2, 14061240), (3, 9374160), (4, 7030620), (5, 5624496), (6, 4687080), (8, 3515310), (9, 3124720), (10, 2812248), (12, 2343540), (15, 1874832), (16, 1757655), (18, 1562360), (20, 1406124), (24, 1171770), (30, 937416), (36, 781180), (40, 703062), (45, 624944), (48, 585885), (60, 468708), (72, 390590), (80, 351531), (90, 312472), (120, 234354), (139, 202320), (144, 195295), (180, 156236), (240, 117177), (278, 101160), (281, 100080), (360, 78118), (417, 67440), (556, 50580), (562, 50040), (695, 40464), (720, 39059), (834, 33720), (843, 33360), (1112, 25290), (1124, 25020), (1251, 22480), (1390, 20232), (1405, 20016), (1668, 16860), (1686, 16680), (2085, 13488), (2224, 12645), (2248, 12510), (2502, 11240), (2529, 11120), (2780, 10116), (2810, 10008), (3336, 8430), (3372, 8340), (4170, 6744), (4215, 6672), (4496, 6255), (5004, 5620), (5058, 5560)]