80492000

素因数分解:

$2^5\times 5^3\times {\mathrm{20123}}^1$

素因数の和:20148

約数の個数: 48

約数和(自身を含む): 197778672

約数和(自身を除く): 117286672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 20123, 40246, 80492, 100615, 160984, 201230, 321968, 402460, 503075, 643936, 804920, 1006150, 1609840, 2012300, 2515375, 3219680, 4024600, 5030750, 8049200, 10061500, 16098400, 20123000, 40246000, 80492000]

約数ペア:

[(1, 80492000), (2, 40246000), (4, 20123000), (5, 16098400), (8, 10061500), (10, 8049200), (16, 5030750), (20, 4024600), (25, 3219680), (32, 2515375), (40, 2012300), (50, 1609840), (80, 1006150), (100, 804920), (125, 643936), (160, 503075), (200, 402460), (250, 321968), (400, 201230), (500, 160984), (800, 100615), (1000, 80492), (2000, 40246), (4000, 20123)]