881551216

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{19531}}^1$

素因数の和:19590

約数の個数: 80

約数和(自身を含む): 2170083328

約数和(自身を除く): 1288532112

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 52, 56, 62, 91, 104, 112, 124, 182, 208, 217, 248, 364, 403, 434, 496, 728, 806, 868, 1456, 1612, 1736, 2821, 3224, 3472, 5642, 6448, 11284, 19531, 22568, 39062, 45136, 78124, 136717, 156248, 253903, 273434, 312496, 507806, 546868, 605461, 1015612, 1093736, 1210922, 1777321, 2031224, 2187472, 2421844, 3554642, 4062448, 4238227, 4843688, 7109284, 7870993, 8476454, 9687376, 14218568, 15741986, 16952908, 28437136, 31483972, 33905816, 55096951, 62967944, 67811632, 110193902, 125935888, 220387804, 440775608, 881551216]

約数ペア:

[(1, 881551216), (2, 440775608), (4, 220387804), (7, 125935888), (8, 110193902), (13, 67811632), (14, 62967944), (16, 55096951), (26, 33905816), (28, 31483972), (31, 28437136), (52, 16952908), (56, 15741986), (62, 14218568), (91, 9687376), (104, 8476454), (112, 7870993), (124, 7109284), (182, 4843688), (208, 4238227), (217, 4062448), (248, 3554642), (364, 2421844), (403, 2187472), (434, 2031224), (496, 1777321), (728, 1210922), (806, 1093736), (868, 1015612), (1456, 605461), (1612, 546868), (1736, 507806), (2821, 312496), (3224, 273434), (3472, 253903), (5642, 156248), (6448, 136717), (11284, 78124), (19531, 45136), (22568, 39062)]