215802470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53549}}^1$

素因数の和:53600

約数の個数: 32

約数和(自身を含む): 431827200

約数和(自身を除く): 216024730

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 53549, 107098, 267745, 535490, 696137, 1392274, 1660019, 3320038, 3480685, 6961370, 8300095, 16600190, 21580247, 43160494, 107901235, 215802470]

約数ペア:

[(1, 215802470), (2, 107901235), (5, 43160494), (10, 21580247), (13, 16600190), (26, 8300095), (31, 6961370), (62, 3480685), (65, 3320038), (130, 1660019), (155, 1392274), (310, 696137), (403, 535490), (806, 267745), (2015, 107098), (4030, 53549)]