20875080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{2383}}^1$

素因数の和:2470

約数の個数: 64

約数和(自身を含む): 63509760

約数和(自身を除く): 42634680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 73, 120, 146, 219, 292, 365, 438, 584, 730, 876, 1095, 1460, 1752, 2190, 2383, 2920, 4380, 4766, 7149, 8760, 9532, 11915, 14298, 19064, 23830, 28596, 35745, 47660, 57192, 71490, 95320, 142980, 173959, 285960, 347918, 521877, 695836, 869795, 1043754, 1391672, 1739590, 2087508, 2609385, 3479180, 4175016, 5218770, 6958360, 10437540, 20875080]

約数ペア:

[(1, 20875080), (2, 10437540), (3, 6958360), (4, 5218770), (5, 4175016), (6, 3479180), (8, 2609385), (10, 2087508), (12, 1739590), (15, 1391672), (20, 1043754), (24, 869795), (30, 695836), (40, 521877), (60, 347918), (73, 285960), (120, 173959), (146, 142980), (219, 95320), (292, 71490), (365, 57192), (438, 47660), (584, 35745), (730, 28596), (876, 23830), (1095, 19064), (1460, 14298), (1752, 11915), (2190, 9532), (2383, 8760), (2920, 7149), (4380, 4766)]