78826960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:568

約数の個数: 80

約数和(自身を含む): 195858000

約数和(自身を除く): 117031040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 149, 170, 272, 298, 340, 389, 596, 680, 745, 778, 1192, 1360, 1490, 1556, 1945, 2384, 2533, 2980, 3112, 3890, 5066, 5960, 6224, 6613, 7780, 10132, 11920, 12665, 13226, 15560, 20264, 25330, 26452, 31120, 33065, 40528, 50660, 52904, 57961, 66130, 101320, 105808, 115922, 132260, 202640, 231844, 264520, 289805, 463688, 529040, 579610, 927376, 985337, 1159220, 1970674, 2318440, 3941348, 4636880, 4926685, 7882696, 9853370, 15765392, 19706740, 39413480, 78826960]

約数ペア:

[(1, 78826960), (2, 39413480), (4, 19706740), (5, 15765392), (8, 9853370), (10, 7882696), (16, 4926685), (17, 4636880), (20, 3941348), (34, 2318440), (40, 1970674), (68, 1159220), (80, 985337), (85, 927376), (136, 579610), (149, 529040), (170, 463688), (272, 289805), (298, 264520), (340, 231844), (389, 202640), (596, 132260), (680, 115922), (745, 105808), (778, 101320), (1192, 66130), (1360, 57961), (1490, 52904), (1556, 50660), (1945, 40528), (2384, 33065), (2533, 31120), (2980, 26452), (3112, 25330), (3890, 20264), (5066, 15560), (5960, 13226), (6224, 12665), (6613, 11920), (7780, 10132)]