1661320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1013}}^1$

素因数の和:1065

約数の個数: 32

約数和(自身を含む): 3832920

約数和(自身を除く): 2171600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1013, 1640, 2026, 4052, 5065, 8104, 10130, 20260, 40520, 41533, 83066, 166132, 207665, 332264, 415330, 830660, 1661320]

約数ペア:

[(1, 1661320), (2, 830660), (4, 415330), (5, 332264), (8, 207665), (10, 166132), (20, 83066), (40, 41533), (41, 40520), (82, 20260), (164, 10130), (205, 8104), (328, 5065), (410, 4052), (820, 2026), (1013, 1640)]