257533980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1867}}^1$

素因数の和:1920

約数の個数: 144

約数和(自身を含む): 834771840

約数和(自身を除く): 577237860

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 19, 20, 22, 30, 33, 38, 44, 55, 57, 60, 66, 76, 95, 110, 114, 121, 132, 165, 190, 209, 220, 228, 242, 285, 330, 363, 380, 418, 484, 570, 605, 627, 660, 726, 836, 1045, 1140, 1210, 1254, 1452, 1815, 1867, 2090, 2299, 2420, 2508, 3135, 3630, 3734, 4180, 4598, 5601, 6270, 6897, 7260, 7468, 9196, 9335, 11202, 11495, 12540, 13794, 18670, 20537, 22404, 22990, 27588, 28005, 34485, 35473, 37340, 41074, 45980, 56010, 61611, 68970, 70946, 82148, 102685, 106419, 112020, 123222, 137940, 141892, 177365, 205370, 212838, 225907, 246444, 308055, 354730, 390203, 410740, 425676, 451814, 532095, 616110, 677721, 709460, 780406, 903628, 1064190, 1129535, 1170609, 1232220, 1355442, 1560812, 1951015, 2128380, 2259070, 2341218, 2710884, 3388605, 3902030, 4292233, 4518140, 4682436, 5853045, 6777210, 7804060, 8584466, 11706090, 12876699, 13554420, 17168932, 21461165, 23412180, 25753398, 42922330, 51506796, 64383495, 85844660, 128766990, 257533980]

約数ペア:

[(1, 257533980), (2, 128766990), (3, 85844660), (4, 64383495), (5, 51506796), (6, 42922330), (10, 25753398), (11, 23412180), (12, 21461165), (15, 17168932), (19, 13554420), (20, 12876699), (22, 11706090), (30, 8584466), (33, 7804060), (38, 6777210), (44, 5853045), (55, 4682436), (57, 4518140), (60, 4292233), (66, 3902030), (76, 3388605), (95, 2710884), (110, 2341218), (114, 2259070), (121, 2128380), (132, 1951015), (165, 1560812), (190, 1355442), (209, 1232220), (220, 1170609), (228, 1129535), (242, 1064190), (285, 903628), (330, 780406), (363, 709460), (380, 677721), (418, 616110), (484, 532095), (570, 451814), (605, 425676), (627, 410740), (660, 390203), (726, 354730), (836, 308055), (1045, 246444), (1140, 225907), (1210, 212838), (1254, 205370), (1452, 177365), (1815, 141892), (1867, 137940), (2090, 123222), (2299, 112020), (2420, 106419), (2508, 102685), (3135, 82148), (3630, 70946), (3734, 68970), (4180, 61611), (4598, 56010), (5601, 45980), (6270, 41074), (6897, 37340), (7260, 35473), (7468, 34485), (9196, 28005), (9335, 27588), (11202, 22990), (11495, 22404), (12540, 20537), (13794, 18670)]