129124480

素因数分解:

$2^7\times 5^1\times {\mathrm{201757}}^1$

素因数の和:201776

約数の個数: 32

約数和(自身を含む): 308689740

約数和(自身を除く): 179565260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 201757, 403514, 807028, 1008785, 1614056, 2017570, 3228112, 4035140, 6456224, 8070280, 12912448, 16140560, 25824896, 32281120, 64562240, 129124480]

約数ペア:

[(1, 129124480), (2, 64562240), (4, 32281120), (5, 25824896), (8, 16140560), (10, 12912448), (16, 8070280), (20, 6456224), (32, 4035140), (40, 3228112), (64, 2017570), (80, 1614056), (128, 1008785), (160, 807028), (320, 403514), (640, 201757)]