89571890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:351

約数の個数: 64

約数和(自身を含む): 179712000

約数和(自身を除く): 90140110

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 103, 115, 190, 199, 206, 230, 398, 437, 515, 874, 995, 1030, 1957, 1990, 2185, 2369, 3781, 3914, 4370, 4577, 4738, 7562, 9154, 9785, 11845, 18905, 19570, 20497, 22885, 23690, 37810, 40994, 45011, 45770, 86963, 90022, 102485, 173926, 204970, 225055, 389443, 434815, 450110, 471431, 778886, 869630, 942862, 1947215, 2357155, 3894430, 4714310, 8957189, 17914378, 44785945, 89571890]

約数ペア:

[(1, 89571890), (2, 44785945), (5, 17914378), (10, 8957189), (19, 4714310), (23, 3894430), (38, 2357155), (46, 1947215), (95, 942862), (103, 869630), (115, 778886), (190, 471431), (199, 450110), (206, 434815), (230, 389443), (398, 225055), (437, 204970), (515, 173926), (874, 102485), (995, 90022), (1030, 86963), (1957, 45770), (1990, 45011), (2185, 40994), (2369, 37810), (3781, 23690), (3914, 22885), (4370, 20497), (4577, 19570), (4738, 18905), (7562, 11845), (9154, 9785)]