71306480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{571}}^1$

素因数の和:814

約数の個数: 80

約数和(自身を含む): 190654464

約数和(自身を除く): 119347984

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 223, 280, 446, 560, 571, 892, 1115, 1142, 1561, 1784, 2230, 2284, 2855, 3122, 3568, 3997, 4460, 4568, 5710, 6244, 7805, 7994, 8920, 9136, 11420, 12488, 15610, 15988, 17840, 19985, 22840, 24976, 31220, 31976, 39970, 45680, 62440, 63952, 79940, 124880, 127333, 159880, 254666, 319760, 509332, 636665, 891331, 1018664, 1273330, 1782662, 2037328, 2546660, 3565324, 4456655, 5093320, 7130648, 8913310, 10186640, 14261296, 17826620, 35653240, 71306480]

約数ペア:

[(1, 71306480), (2, 35653240), (4, 17826620), (5, 14261296), (7, 10186640), (8, 8913310), (10, 7130648), (14, 5093320), (16, 4456655), (20, 3565324), (28, 2546660), (35, 2037328), (40, 1782662), (56, 1273330), (70, 1018664), (80, 891331), (112, 636665), (140, 509332), (223, 319760), (280, 254666), (446, 159880), (560, 127333), (571, 124880), (892, 79940), (1115, 63952), (1142, 62440), (1561, 45680), (1784, 39970), (2230, 31976), (2284, 31220), (2855, 24976), (3122, 22840), (3568, 19985), (3997, 17840), (4460, 15988), (4568, 15610), (5710, 12488), (6244, 11420), (7805, 9136), (7994, 8920)]