20244160

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1543}}^1$

素因数の和:1601

約数の個数: 56

約数和(自身を含む): 49414176

約数和(自身を除く): 29170016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 160, 164, 205, 320, 328, 410, 656, 820, 1312, 1543, 1640, 2624, 3086, 3280, 6172, 6560, 7715, 12344, 13120, 15430, 24688, 30860, 49376, 61720, 63263, 98752, 123440, 126526, 246880, 253052, 316315, 493760, 506104, 632630, 1012208, 1265260, 2024416, 2530520, 4048832, 5061040, 10122080, 20244160]

約数ペア:

[(1, 20244160), (2, 10122080), (4, 5061040), (5, 4048832), (8, 2530520), (10, 2024416), (16, 1265260), (20, 1012208), (32, 632630), (40, 506104), (41, 493760), (64, 316315), (80, 253052), (82, 246880), (160, 126526), (164, 123440), (205, 98752), (320, 63263), (328, 61720), (410, 49376), (656, 30860), (820, 24688), (1312, 15430), (1543, 13120), (1640, 12344), (2624, 7715), (3086, 6560), (3280, 6172)]