279311240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{17327}}^1$

素因数の和:17382

約数の個数: 64

約数和(自身を含む): 698664960

約数和(自身を除く): 419353720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 17327, 34654, 69308, 86635, 138616, 173270, 225251, 346540, 450502, 537137, 693080, 901004, 1074274, 1126255, 1802008, 2148548, 2252510, 2685685, 4297096, 4505020, 5371370, 6982781, 9010040, 10742740, 13965562, 21485480, 27931124, 34913905, 55862248, 69827810, 139655620, 279311240]

約数ペア:

[(1, 279311240), (2, 139655620), (4, 69827810), (5, 55862248), (8, 34913905), (10, 27931124), (13, 21485480), (20, 13965562), (26, 10742740), (31, 9010040), (40, 6982781), (52, 5371370), (62, 4505020), (65, 4297096), (104, 2685685), (124, 2252510), (130, 2148548), (155, 1802008), (248, 1126255), (260, 1074274), (310, 901004), (403, 693080), (520, 537137), (620, 450502), (806, 346540), (1240, 225251), (1612, 173270), (2015, 138616), (3224, 86635), (4030, 69308), (8060, 34654), (16120, 17327)]