20130500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:214

約数の個数: 96

約数和(自身を含む): 50144640

約数和(自身を除く): 30014140

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 38, 50, 52, 65, 76, 95, 100, 125, 130, 163, 190, 247, 250, 260, 325, 326, 380, 475, 494, 500, 650, 652, 815, 950, 988, 1235, 1300, 1625, 1630, 1900, 2119, 2375, 2470, 3097, 3250, 3260, 4075, 4238, 4750, 4940, 6175, 6194, 6500, 8150, 8476, 9500, 10595, 12350, 12388, 15485, 16300, 20375, 21190, 24700, 30875, 30970, 40261, 40750, 42380, 52975, 61750, 61940, 77425, 80522, 81500, 105950, 123500, 154850, 161044, 201305, 211900, 264875, 309700, 387125, 402610, 529750, 774250, 805220, 1006525, 1059500, 1548500, 2013050, 4026100, 5032625, 10065250, 20130500]

約数ペア:

[(1, 20130500), (2, 10065250), (4, 5032625), (5, 4026100), (10, 2013050), (13, 1548500), (19, 1059500), (20, 1006525), (25, 805220), (26, 774250), (38, 529750), (50, 402610), (52, 387125), (65, 309700), (76, 264875), (95, 211900), (100, 201305), (125, 161044), (130, 154850), (163, 123500), (190, 105950), (247, 81500), (250, 80522), (260, 77425), (325, 61940), (326, 61750), (380, 52975), (475, 42380), (494, 40750), (500, 40261), (650, 30970), (652, 30875), (815, 24700), (950, 21190), (988, 20375), (1235, 16300), (1300, 15485), (1625, 12388), (1630, 12350), (1900, 10595), (2119, 9500), (2375, 8476), (2470, 8150), (3097, 6500), (3250, 6194), (3260, 6175), (4075, 4940), (4238, 4750)]