266402840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{19531}}^1$

素因数の和:19584

約数の個数: 64

約数和(自身を含む): 675025920

約数和(自身を除く): 408623080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2728, 3410, 6820, 13640, 19531, 39062, 78124, 97655, 156248, 195310, 214841, 390620, 429682, 605461, 781240, 859364, 1074205, 1210922, 1718728, 2148410, 2421844, 3027305, 4296820, 4843688, 6054610, 6660071, 8593640, 12109220, 13320142, 24218440, 26640284, 33300355, 53280568, 66600710, 133201420, 266402840]

約数ペア:

[(1, 266402840), (2, 133201420), (4, 66600710), (5, 53280568), (8, 33300355), (10, 26640284), (11, 24218440), (20, 13320142), (22, 12109220), (31, 8593640), (40, 6660071), (44, 6054610), (55, 4843688), (62, 4296820), (88, 3027305), (110, 2421844), (124, 2148410), (155, 1718728), (220, 1210922), (248, 1074205), (310, 859364), (341, 781240), (440, 605461), (620, 429682), (682, 390620), (1240, 214841), (1364, 195310), (1705, 156248), (2728, 97655), (3410, 78124), (6820, 39062), (13640, 19531)]