1989968370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2143}}^1\times {\mathrm{2381}}^1$

素因数の和:4547

約数の個数: 64

約数和(自身を含む): 5147864064

約数和(自身を除く): 3157895694

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 2143, 2381, 4286, 4762, 6429, 7143, 10715, 11905, 12858, 14286, 21430, 23810, 27859, 30953, 32145, 35715, 55718, 61906, 64290, 71430, 83577, 92859, 139295, 154765, 167154, 185718, 278590, 309530, 417885, 464295, 835770, 928590, 5102483, 10204966, 15307449, 25512415, 30614898, 51024830, 66332279, 76537245, 132664558, 153074490, 198996837, 331661395, 397993674, 663322790, 994984185, 1989968370]

約数ペア:

[(1, 1989968370), (2, 994984185), (3, 663322790), (5, 397993674), (6, 331661395), (10, 198996837), (13, 153074490), (15, 132664558), (26, 76537245), (30, 66332279), (39, 51024830), (65, 30614898), (78, 25512415), (130, 15307449), (195, 10204966), (390, 5102483), (2143, 928590), (2381, 835770), (4286, 464295), (4762, 417885), (6429, 309530), (7143, 278590), (10715, 185718), (11905, 167154), (12858, 154765), (14286, 139295), (21430, 92859), (23810, 83577), (27859, 71430), (30953, 64290), (32145, 61906), (35715, 55718)]