188971785

素因数分解:

$3^4\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1021}}^1$

素因数の和:1495

約数の個数: 40

約数和(自身を含む): 339823176

約数和(自身を除く): 150851391

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 457, 1021, 1371, 2285, 3063, 4113, 5105, 6855, 9189, 12339, 15315, 20565, 27567, 37017, 45945, 61695, 82701, 137835, 185085, 413505, 466597, 1399791, 2332985, 4199373, 6998955, 12598119, 20996865, 37794357, 62990595, 188971785]

約数ペア:

[(1, 188971785), (3, 62990595), (5, 37794357), (9, 20996865), (15, 12598119), (27, 6998955), (45, 4199373), (81, 2332985), (135, 1399791), (405, 466597), (457, 413505), (1021, 185085), (1371, 137835), (2285, 82701), (3063, 61695), (4113, 45945), (5105, 37017), (6855, 27567), (9189, 20565), (12339, 15315)]