85572220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{647}}^1$

素因数の和:1062

約数の個数: 48

約数和(自身を含む): 191056320

約数和(自身を除く): 105484100

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 389, 647, 778, 1294, 1556, 1945, 2588, 3235, 3890, 6470, 6613, 7780, 10999, 12940, 13226, 21998, 26452, 33065, 43996, 54995, 66130, 109990, 132260, 219980, 251683, 503366, 1006732, 1258415, 2516830, 4278611, 5033660, 8557222, 17114444, 21393055, 42786110, 85572220]

約数ペア:

[(1, 85572220), (2, 42786110), (4, 21393055), (5, 17114444), (10, 8557222), (17, 5033660), (20, 4278611), (34, 2516830), (68, 1258415), (85, 1006732), (170, 503366), (340, 251683), (389, 219980), (647, 132260), (778, 109990), (1294, 66130), (1556, 54995), (1945, 43996), (2588, 33065), (3235, 26452), (3890, 21998), (6470, 13226), (6613, 12940), (7780, 10999)]