3647140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 8870400

約数和(自身を除く): 5223260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 239, 436, 478, 545, 763, 956, 1090, 1195, 1526, 1673, 2180, 2390, 3052, 3346, 3815, 4780, 6692, 7630, 8365, 15260, 16730, 26051, 33460, 52102, 104204, 130255, 182357, 260510, 364714, 521020, 729428, 911785, 1823570, 3647140]

約数ペア:

[(1, 3647140), (2, 1823570), (4, 911785), (5, 729428), (7, 521020), (10, 364714), (14, 260510), (20, 182357), (28, 130255), (35, 104204), (70, 52102), (109, 33460), (140, 26051), (218, 16730), (239, 15260), (436, 8365), (478, 7630), (545, 6692), (763, 4780), (956, 3815), (1090, 3346), (1195, 3052), (1526, 2390), (1673, 2180)]