31720220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{9851}}^1$

素因数の和:9890

約数の個数: 48

約数和(自身を含む): 79446528

約数和(自身を除く): 47726308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 9851, 19702, 39404, 49255, 68957, 98510, 137914, 197020, 226573, 275828, 344785, 453146, 689570, 906292, 1132865, 1379140, 1586011, 2265730, 3172022, 4531460, 6344044, 7930055, 15860110, 31720220]

約数ペア:

[(1, 31720220), (2, 15860110), (4, 7930055), (5, 6344044), (7, 4531460), (10, 3172022), (14, 2265730), (20, 1586011), (23, 1379140), (28, 1132865), (35, 906292), (46, 689570), (70, 453146), (92, 344785), (115, 275828), (140, 226573), (161, 197020), (230, 137914), (322, 98510), (460, 68957), (644, 49255), (805, 39404), (1610, 19702), (3220, 9851)]