19681870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1499}}^1$

素因数の和:1620

約数の個数: 32

約数和(自身を含む): 38556000

約数和(自身を除く): 18874130

約数列:

[1, 2, 5, 10, 13, 26, 65, 101, 130, 202, 505, 1010, 1313, 1499, 2626, 2998, 6565, 7495, 13130, 14990, 19487, 38974, 97435, 151399, 194870, 302798, 756995, 1513990, 1968187, 3936374, 9840935, 19681870]

約数ペア:

[(1, 19681870), (2, 9840935), (5, 3936374), (10, 1968187), (13, 1513990), (26, 756995), (65, 302798), (101, 194870), (130, 151399), (202, 97435), (505, 38974), (1010, 19487), (1313, 14990), (1499, 13130), (2626, 7495), (2998, 6565)]