18388290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:267

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 27334590

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 89, 97, 142, 178, 194, 213, 267, 291, 355, 426, 445, 485, 534, 582, 710, 890, 970, 1065, 1335, 1455, 2130, 2670, 2910, 6319, 6887, 8633, 12638, 13774, 17266, 18957, 20661, 25899, 31595, 34435, 37914, 41322, 43165, 51798, 63190, 68870, 86330, 94785, 103305, 129495, 189570, 206610, 258990, 612943, 1225886, 1838829, 3064715, 3677658, 6129430, 9194145, 18388290]

約数ペア:

[(1, 18388290), (2, 9194145), (3, 6129430), (5, 3677658), (6, 3064715), (10, 1838829), (15, 1225886), (30, 612943), (71, 258990), (89, 206610), (97, 189570), (142, 129495), (178, 103305), (194, 94785), (213, 86330), (267, 68870), (291, 63190), (355, 51798), (426, 43165), (445, 41322), (485, 37914), (534, 34435), (582, 31595), (710, 25899), (890, 20661), (970, 18957), (1065, 17266), (1335, 13774), (1455, 12638), (2130, 8633), (2670, 6887), (2910, 6319)]