68681320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{547}}^1$

素因数の和:674

約数の個数: 64

約数和(自身を含む): 160585920

約数和(自身を除く): 91904600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 73, 86, 146, 172, 215, 292, 344, 365, 430, 547, 584, 730, 860, 1094, 1460, 1720, 2188, 2735, 2920, 3139, 4376, 5470, 6278, 10940, 12556, 15695, 21880, 23521, 25112, 31390, 39931, 47042, 62780, 79862, 94084, 117605, 125560, 159724, 188168, 199655, 235210, 319448, 399310, 470420, 798620, 940840, 1597240, 1717033, 3434066, 6868132, 8585165, 13736264, 17170330, 34340660, 68681320]

約数ペア:

[(1, 68681320), (2, 34340660), (4, 17170330), (5, 13736264), (8, 8585165), (10, 6868132), (20, 3434066), (40, 1717033), (43, 1597240), (73, 940840), (86, 798620), (146, 470420), (172, 399310), (215, 319448), (292, 235210), (344, 199655), (365, 188168), (430, 159724), (547, 125560), (584, 117605), (730, 94084), (860, 79862), (1094, 62780), (1460, 47042), (1720, 39931), (2188, 31390), (2735, 25112), (2920, 23521), (3139, 21880), (4376, 15695), (5470, 12556), (6278, 10940)]