84428840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{51481}}^1$

素因数の和:51533

約数の個数: 32

約数和(自身を含む): 194601960

約数和(自身を除く): 110173120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 51481, 102962, 205924, 257405, 411848, 514810, 1029620, 2059240, 2110721, 4221442, 8442884, 10553605, 16885768, 21107210, 42214420, 84428840]

約数ペア:

[(1, 84428840), (2, 42214420), (4, 21107210), (5, 16885768), (8, 10553605), (10, 8442884), (20, 4221442), (40, 2110721), (41, 2059240), (82, 1029620), (164, 514810), (205, 411848), (328, 257405), (410, 205924), (820, 102962), (1640, 51481)]