2118640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{373}}^1$

素因数の和:457

約数の個数: 40

約数和(自身を含む): 5008608

約数和(自身を除く): 2889968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 373, 568, 710, 746, 1136, 1420, 1492, 1865, 2840, 2984, 3730, 5680, 5968, 7460, 14920, 26483, 29840, 52966, 105932, 132415, 211864, 264830, 423728, 529660, 1059320, 2118640]

約数ペア:

[(1, 2118640), (2, 1059320), (4, 529660), (5, 423728), (8, 264830), (10, 211864), (16, 132415), (20, 105932), (40, 52966), (71, 29840), (80, 26483), (142, 14920), (284, 7460), (355, 5968), (373, 5680), (568, 3730), (710, 2984), (746, 2840), (1136, 1865), (1420, 1492)]