61439320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{37463}}^1$

素因数の和:37515

約数の個数: 32

約数和(自身を含む): 141613920

約数和(自身を除く): 80174600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 37463, 74926, 149852, 187315, 299704, 374630, 749260, 1498520, 1535983, 3071966, 6143932, 7679915, 12287864, 15359830, 30719660, 61439320]

約数ペア:

[(1, 61439320), (2, 30719660), (4, 15359830), (5, 12287864), (8, 7679915), (10, 6143932), (20, 3071966), (40, 1535983), (41, 1498520), (82, 749260), (164, 374630), (205, 299704), (328, 187315), (410, 149852), (820, 74926), (1640, 37463)]