12421990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{251}}^1$

素因数の和:373

約数の個数: 48

約数和(自身を含む): 26372304

約数和(自身を除く): 13950314

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 101, 202, 245, 251, 490, 502, 505, 707, 1010, 1255, 1414, 1757, 2510, 3514, 3535, 4949, 7070, 8785, 9898, 12299, 17570, 24598, 24745, 25351, 49490, 50702, 61495, 122990, 126755, 177457, 253510, 354914, 887285, 1242199, 1774570, 2484398, 6210995, 12421990]

約数ペア:

[(1, 12421990), (2, 6210995), (5, 2484398), (7, 1774570), (10, 1242199), (14, 887285), (35, 354914), (49, 253510), (70, 177457), (98, 126755), (101, 122990), (202, 61495), (245, 50702), (251, 49490), (490, 25351), (502, 24745), (505, 24598), (707, 17570), (1010, 12299), (1255, 9898), (1414, 8785), (1757, 7070), (2510, 4949), (3514, 3535)]