18777220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:253

約数の個数: 96

約数和(自身を含む): 50077440

約数和(自身を除く): 31300220

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 89, 110, 137, 140, 154, 178, 220, 274, 308, 356, 385, 445, 548, 623, 685, 770, 890, 959, 979, 1246, 1370, 1507, 1540, 1780, 1918, 1958, 2492, 2740, 3014, 3115, 3836, 3916, 4795, 4895, 6028, 6230, 6853, 7535, 9590, 9790, 10549, 12193, 12460, 13706, 15070, 19180, 19580, 21098, 24386, 27412, 30140, 34265, 42196, 48772, 52745, 60965, 68530, 85351, 105490, 121930, 134123, 137060, 170702, 210980, 243860, 268246, 341404, 426755, 536492, 670615, 853510, 938861, 1341230, 1707020, 1877722, 2682460, 3755444, 4694305, 9388610, 18777220]

約数ペア:

[(1, 18777220), (2, 9388610), (4, 4694305), (5, 3755444), (7, 2682460), (10, 1877722), (11, 1707020), (14, 1341230), (20, 938861), (22, 853510), (28, 670615), (35, 536492), (44, 426755), (55, 341404), (70, 268246), (77, 243860), (89, 210980), (110, 170702), (137, 137060), (140, 134123), (154, 121930), (178, 105490), (220, 85351), (274, 68530), (308, 60965), (356, 52745), (385, 48772), (445, 42196), (548, 34265), (623, 30140), (685, 27412), (770, 24386), (890, 21098), (959, 19580), (979, 19180), (1246, 15070), (1370, 13706), (1507, 12460), (1540, 12193), (1780, 10549), (1918, 9790), (1958, 9590), (2492, 7535), (2740, 6853), (3014, 6230), (3115, 6028), (3836, 4895), (3916, 4795)]