201230000

素因数分解:

$2^4\times 5^4\times {\mathrm{20123}}^1$

素因数の和:20151

約数の個数: 50

約数和(自身を含む): 487222164

約数和(自身を除く): 285992164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 10000, 20123, 40246, 80492, 100615, 160984, 201230, 321968, 402460, 503075, 804920, 1006150, 1609840, 2012300, 2515375, 4024600, 5030750, 8049200, 10061500, 12576875, 20123000, 25153750, 40246000, 50307500, 100615000, 201230000]

約数ペア:

[(1, 201230000), (2, 100615000), (4, 50307500), (5, 40246000), (8, 25153750), (10, 20123000), (16, 12576875), (20, 10061500), (25, 8049200), (40, 5030750), (50, 4024600), (80, 2515375), (100, 2012300), (125, 1609840), (200, 1006150), (250, 804920), (400, 503075), (500, 402460), (625, 321968), (1000, 201230), (1250, 160984), (2000, 100615), (2500, 80492), (5000, 40246), (10000, 20123)]