205586320

素因数分解:

$2^4\times 5^1\times {\mathrm{691}}^1\times {\mathrm{3719}}^1$

素因数の和:4423

約数の個数: 40

約数和(自身を含む): 478808640

約数和(自身を除く): 273222320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 691, 1382, 2764, 3455, 3719, 5528, 6910, 7438, 11056, 13820, 14876, 18595, 27640, 29752, 37190, 55280, 59504, 74380, 148760, 297520, 2569829, 5139658, 10279316, 12849145, 20558632, 25698290, 41117264, 51396580, 102793160, 205586320]

約数ペア:

[(1, 205586320), (2, 102793160), (4, 51396580), (5, 41117264), (8, 25698290), (10, 20558632), (16, 12849145), (20, 10279316), (40, 5139658), (80, 2569829), (691, 297520), (1382, 148760), (2764, 74380), (3455, 59504), (3719, 55280), (5528, 37190), (6910, 29752), (7438, 27640), (11056, 18595), (13820, 14876)]