19428110

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 40824000

約数和(自身を除く): 21395890

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 59, 65, 85, 118, 130, 149, 170, 221, 295, 298, 442, 590, 745, 767, 1003, 1105, 1490, 1534, 1937, 2006, 2210, 2533, 3835, 3874, 5015, 5066, 7670, 8791, 9685, 10030, 12665, 13039, 17582, 19370, 25330, 26078, 32929, 43955, 65195, 65858, 87910, 114283, 130390, 149447, 164645, 228566, 298894, 329290, 571415, 747235, 1142830, 1494470, 1942811, 3885622, 9714055, 19428110]

約数ペア:

[(1, 19428110), (2, 9714055), (5, 3885622), (10, 1942811), (13, 1494470), (17, 1142830), (26, 747235), (34, 571415), (59, 329290), (65, 298894), (85, 228566), (118, 164645), (130, 149447), (149, 130390), (170, 114283), (221, 87910), (295, 65858), (298, 65195), (442, 43955), (590, 32929), (745, 26078), (767, 25330), (1003, 19370), (1105, 17582), (1490, 13039), (1534, 12665), (1937, 10030), (2006, 9685), (2210, 8791), (2533, 7670), (3835, 5066), (3874, 5015)]