21740750

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:258

約数の個数: 64

約数和(自身を含む): 44928000

約数和(自身を除く): 23187250

約数列:

[1, 2, 5, 10, 19, 23, 25, 38, 46, 50, 95, 115, 125, 190, 199, 230, 250, 398, 437, 475, 575, 874, 950, 995, 1150, 1990, 2185, 2375, 2875, 3781, 4370, 4577, 4750, 4975, 5750, 7562, 9154, 9950, 10925, 18905, 21850, 22885, 24875, 37810, 45770, 49750, 54625, 86963, 94525, 109250, 114425, 173926, 189050, 228850, 434815, 472625, 572125, 869630, 945250, 1144250, 2174075, 4348150, 10870375, 21740750]

約数ペア:

[(1, 21740750), (2, 10870375), (5, 4348150), (10, 2174075), (19, 1144250), (23, 945250), (25, 869630), (38, 572125), (46, 472625), (50, 434815), (95, 228850), (115, 189050), (125, 173926), (190, 114425), (199, 109250), (230, 94525), (250, 86963), (398, 54625), (437, 49750), (475, 45770), (575, 37810), (874, 24875), (950, 22885), (995, 21850), (1150, 18905), (1990, 10925), (2185, 9950), (2375, 9154), (2875, 7562), (3781, 5750), (4370, 4975), (4577, 4750)]