204963280

素因数分解:

$2^4\times 5^1\times {\mathrm{619}}^1\times {\mathrm{4139}}^1$

素因数の和:4771

約数の個数: 40

約数和(自身を含む): 477424800

約数和(自身を除く): 272461520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 619, 1238, 2476, 3095, 4139, 4952, 6190, 8278, 9904, 12380, 16556, 20695, 24760, 33112, 41390, 49520, 66224, 82780, 165560, 331120, 2562041, 5124082, 10248164, 12810205, 20496328, 25620410, 40992656, 51240820, 102481640, 204963280]

約数ペア:

[(1, 204963280), (2, 102481640), (4, 51240820), (5, 40992656), (8, 25620410), (10, 20496328), (16, 12810205), (20, 10248164), (40, 5124082), (80, 2562041), (619, 331120), (1238, 165560), (2476, 82780), (3095, 66224), (4139, 49520), (4952, 41390), (6190, 33112), (8278, 24760), (9904, 20695), (12380, 16556)]