18905520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2129}}^1$

素因数の和:2182

約数の個数: 80

約数和(自身を含む): 60219360

約数和(自身を除く): 41313840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 37, 40, 48, 60, 74, 80, 111, 120, 148, 185, 222, 240, 296, 370, 444, 555, 592, 740, 888, 1110, 1480, 1776, 2129, 2220, 2960, 4258, 4440, 6387, 8516, 8880, 10645, 12774, 17032, 21290, 25548, 31935, 34064, 42580, 51096, 63870, 78773, 85160, 102192, 127740, 157546, 170320, 236319, 255480, 315092, 393865, 472638, 510960, 630184, 787730, 945276, 1181595, 1260368, 1575460, 1890552, 2363190, 3150920, 3781104, 4726380, 6301840, 9452760, 18905520]

約数ペア:

[(1, 18905520), (2, 9452760), (3, 6301840), (4, 4726380), (5, 3781104), (6, 3150920), (8, 2363190), (10, 1890552), (12, 1575460), (15, 1260368), (16, 1181595), (20, 945276), (24, 787730), (30, 630184), (37, 510960), (40, 472638), (48, 393865), (60, 315092), (74, 255480), (80, 236319), (111, 170320), (120, 157546), (148, 127740), (185, 102192), (222, 85160), (240, 78773), (296, 63870), (370, 51096), (444, 42580), (555, 34064), (592, 31935), (740, 25548), (888, 21290), (1110, 17032), (1480, 12774), (1776, 10645), (2129, 8880), (2220, 8516), (2960, 6387), (4258, 4440)]