42152920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{25703}}^1$

素因数の和:25755

約数の個数: 32

約数和(自身を含む): 97161120

約数和(自身を除く): 55008200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 25703, 51406, 102812, 128515, 205624, 257030, 514060, 1028120, 1053823, 2107646, 4215292, 5269115, 8430584, 10538230, 21076460, 42152920]

約数ペア:

[(1, 42152920), (2, 21076460), (4, 10538230), (5, 8430584), (8, 5269115), (10, 4215292), (20, 2107646), (40, 1053823), (41, 1028120), (82, 514060), (164, 257030), (205, 205624), (328, 128515), (410, 102812), (820, 51406), (1640, 25703)]