81823120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53831}}^1$

素因数の和:53863

約数の個数: 40

約数和(自身を含む): 200255040

約数和(自身を除く): 118431920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 53831, 107662, 215324, 269155, 430648, 538310, 861296, 1022789, 1076620, 2045578, 2153240, 4091156, 4306480, 5113945, 8182312, 10227890, 16364624, 20455780, 40911560, 81823120]

約数ペア:

[(1, 81823120), (2, 40911560), (4, 20455780), (5, 16364624), (8, 10227890), (10, 8182312), (16, 5113945), (19, 4306480), (20, 4091156), (38, 2153240), (40, 2045578), (76, 1076620), (80, 1022789), (95, 861296), (152, 538310), (190, 430648), (304, 269155), (380, 215324), (760, 107662), (1520, 53831)]