18993160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{373}}^1$

素因数の和:470

約数の個数: 64

約数和(自身を含む): 45777600

約数和(自身を除く): 26784440

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 67, 76, 95, 134, 152, 190, 268, 335, 373, 380, 536, 670, 746, 760, 1273, 1340, 1492, 1865, 2546, 2680, 2984, 3730, 5092, 6365, 7087, 7460, 10184, 12730, 14174, 14920, 24991, 25460, 28348, 35435, 49982, 50920, 56696, 70870, 99964, 124955, 141740, 199928, 249910, 283480, 474829, 499820, 949658, 999640, 1899316, 2374145, 3798632, 4748290, 9496580, 18993160]

約数ペア:

[(1, 18993160), (2, 9496580), (4, 4748290), (5, 3798632), (8, 2374145), (10, 1899316), (19, 999640), (20, 949658), (38, 499820), (40, 474829), (67, 283480), (76, 249910), (95, 199928), (134, 141740), (152, 124955), (190, 99964), (268, 70870), (335, 56696), (373, 50920), (380, 49982), (536, 35435), (670, 28348), (746, 25460), (760, 24991), (1273, 14920), (1340, 14174), (1492, 12730), (1865, 10184), (2546, 7460), (2680, 7087), (2984, 6365), (3730, 5092)]