221388860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{1867}}^1$

素因数の和:1912

約数の個数: 108

約数和(自身を含む): 594774936

約数和(自身を除く): 373386076

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 121, 140, 154, 196, 220, 242, 245, 308, 385, 484, 490, 539, 605, 770, 847, 980, 1078, 1210, 1540, 1694, 1867, 2156, 2420, 2695, 3388, 3734, 4235, 5390, 5929, 7468, 8470, 9335, 10780, 11858, 13069, 16940, 18670, 20537, 23716, 26138, 29645, 37340, 41074, 52276, 59290, 65345, 82148, 91483, 102685, 118580, 130690, 143759, 182966, 205370, 225907, 261380, 287518, 365932, 410740, 451814, 457415, 575036, 718795, 903628, 914830, 1006313, 1129535, 1437590, 1581349, 1829660, 2012626, 2259070, 2875180, 3162698, 4025252, 4518140, 5031565, 6325396, 7906745, 10063130, 11069443, 15813490, 20126260, 22138886, 31626980, 44277772, 55347215, 110694430, 221388860]

約数ペア:

[(1, 221388860), (2, 110694430), (4, 55347215), (5, 44277772), (7, 31626980), (10, 22138886), (11, 20126260), (14, 15813490), (20, 11069443), (22, 10063130), (28, 7906745), (35, 6325396), (44, 5031565), (49, 4518140), (55, 4025252), (70, 3162698), (77, 2875180), (98, 2259070), (110, 2012626), (121, 1829660), (140, 1581349), (154, 1437590), (196, 1129535), (220, 1006313), (242, 914830), (245, 903628), (308, 718795), (385, 575036), (484, 457415), (490, 451814), (539, 410740), (605, 365932), (770, 287518), (847, 261380), (980, 225907), (1078, 205370), (1210, 182966), (1540, 143759), (1694, 130690), (1867, 118580), (2156, 102685), (2420, 91483), (2695, 82148), (3388, 65345), (3734, 59290), (4235, 52276), (5390, 41074), (5929, 37340), (7468, 29645), (8470, 26138), (9335, 23716), (10780, 20537), (11858, 18670), (13069, 16940)]