287212660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:425

約数の個数: 96

約数和(自身を含む): 707132160

約数和(自身を除く): 419919500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 157, 179, 292, 314, 358, 365, 511, 628, 716, 730, 785, 895, 1022, 1099, 1253, 1460, 1570, 1790, 2044, 2198, 2506, 2555, 3140, 3580, 4396, 5012, 5110, 5495, 6265, 10220, 10990, 11461, 12530, 13067, 21980, 22922, 25060, 26134, 28103, 45844, 52268, 56206, 57305, 65335, 80227, 91469, 112412, 114610, 130670, 140515, 160454, 182938, 196721, 229220, 261340, 281030, 320908, 365876, 393442, 401135, 457345, 562060, 786884, 802270, 914690, 983605, 1604540, 1829380, 1967210, 2051519, 3934420, 4103038, 8206076, 10257595, 14360633, 20515190, 28721266, 41030380, 57442532, 71803165, 143606330, 287212660]

約数ペア:

[(1, 287212660), (2, 143606330), (4, 71803165), (5, 57442532), (7, 41030380), (10, 28721266), (14, 20515190), (20, 14360633), (28, 10257595), (35, 8206076), (70, 4103038), (73, 3934420), (140, 2051519), (146, 1967210), (157, 1829380), (179, 1604540), (292, 983605), (314, 914690), (358, 802270), (365, 786884), (511, 562060), (628, 457345), (716, 401135), (730, 393442), (785, 365876), (895, 320908), (1022, 281030), (1099, 261340), (1253, 229220), (1460, 196721), (1570, 182938), (1790, 160454), (2044, 140515), (2198, 130670), (2506, 114610), (2555, 112412), (3140, 91469), (3580, 80227), (4396, 65335), (5012, 57305), (5110, 56206), (5495, 52268), (6265, 45844), (10220, 28103), (10990, 26134), (11461, 25060), (12530, 22922), (13067, 21980)]