8917790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 19906560

約数和(自身を除く): 10988770

約数列:

[1, 2, 5, 7, 10, 14, 23, 29, 35, 46, 58, 70, 115, 145, 161, 191, 203, 230, 290, 322, 382, 406, 667, 805, 955, 1015, 1334, 1337, 1610, 1910, 2030, 2674, 3335, 4393, 4669, 5539, 6670, 6685, 8786, 9338, 11078, 13370, 21965, 23345, 27695, 30751, 38773, 43930, 46690, 55390, 61502, 77546, 127397, 153755, 193865, 254794, 307510, 387730, 636985, 891779, 1273970, 1783558, 4458895, 8917790]

約数ペア:

[(1, 8917790), (2, 4458895), (5, 1783558), (7, 1273970), (10, 891779), (14, 636985), (23, 387730), (29, 307510), (35, 254794), (46, 193865), (58, 153755), (70, 127397), (115, 77546), (145, 61502), (161, 55390), (191, 46690), (203, 43930), (230, 38773), (290, 30751), (322, 27695), (382, 23345), (406, 21965), (667, 13370), (805, 11078), (955, 9338), (1015, 8786), (1334, 6685), (1337, 6670), (1610, 5539), (1910, 4669), (2030, 4393), (2674, 3335)]