18420780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{719}}^1$

素因数の和:799

約数の個数: 96

約数和(自身を含む): 59996160

約数和(自身を除く): 41575380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 61, 70, 84, 105, 122, 140, 183, 210, 244, 305, 366, 420, 427, 610, 719, 732, 854, 915, 1220, 1281, 1438, 1708, 1830, 2135, 2157, 2562, 2876, 3595, 3660, 4270, 4314, 5033, 5124, 6405, 7190, 8540, 8628, 10066, 10785, 12810, 14380, 15099, 20132, 21570, 25165, 25620, 30198, 43140, 43859, 50330, 60396, 75495, 87718, 100660, 131577, 150990, 175436, 219295, 263154, 301980, 307013, 438590, 526308, 614026, 657885, 877180, 921039, 1228052, 1315770, 1535065, 1842078, 2631540, 3070130, 3684156, 4605195, 6140260, 9210390, 18420780]

約数ペア:

[(1, 18420780), (2, 9210390), (3, 6140260), (4, 4605195), (5, 3684156), (6, 3070130), (7, 2631540), (10, 1842078), (12, 1535065), (14, 1315770), (15, 1228052), (20, 921039), (21, 877180), (28, 657885), (30, 614026), (35, 526308), (42, 438590), (60, 307013), (61, 301980), (70, 263154), (84, 219295), (105, 175436), (122, 150990), (140, 131577), (183, 100660), (210, 87718), (244, 75495), (305, 60396), (366, 50330), (420, 43859), (427, 43140), (610, 30198), (719, 25620), (732, 25165), (854, 21570), (915, 20132), (1220, 15099), (1281, 14380), (1438, 12810), (1708, 10785), (1830, 10066), (2135, 8628), (2157, 8540), (2562, 7190), (2876, 6405), (3595, 5124), (3660, 5033), (4270, 4314)]