420290500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{23}}^2\times {\mathrm{227}}^1$

素因数の和:299

約数の個数: 144

約数和(自身を含む): 1101469824

約数和(自身を除く): 681179324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 92, 100, 115, 125, 140, 161, 175, 227, 230, 250, 322, 350, 454, 460, 500, 529, 575, 644, 700, 805, 875, 908, 1058, 1135, 1150, 1589, 1610, 1750, 2116, 2270, 2300, 2645, 2875, 3178, 3220, 3500, 3703, 4025, 4540, 5221, 5290, 5675, 5750, 6356, 7406, 7945, 8050, 10442, 10580, 11350, 11500, 13225, 14812, 15890, 16100, 18515, 20125, 20884, 22700, 26105, 26450, 28375, 31780, 36547, 37030, 39725, 40250, 52210, 52900, 56750, 66125, 73094, 74060, 79450, 80500, 92575, 104420, 113500, 120083, 130525, 132250, 146188, 158900, 182735, 185150, 198625, 240166, 261050, 264500, 365470, 370300, 397250, 462875, 480332, 522100, 600415, 652625, 730940, 794500, 840581, 913675, 925750, 1200830, 1305250, 1681162, 1827350, 1851500, 2401660, 2610500, 3002075, 3362324, 3654700, 4202905, 4568375, 6004150, 8405810, 9136750, 12008300, 15010375, 16811620, 18273500, 21014525, 30020750, 42029050, 60041500, 84058100, 105072625, 210145250, 420290500]

約数ペア:

[(1, 420290500), (2, 210145250), (4, 105072625), (5, 84058100), (7, 60041500), (10, 42029050), (14, 30020750), (20, 21014525), (23, 18273500), (25, 16811620), (28, 15010375), (35, 12008300), (46, 9136750), (50, 8405810), (70, 6004150), (92, 4568375), (100, 4202905), (115, 3654700), (125, 3362324), (140, 3002075), (161, 2610500), (175, 2401660), (227, 1851500), (230, 1827350), (250, 1681162), (322, 1305250), (350, 1200830), (454, 925750), (460, 913675), (500, 840581), (529, 794500), (575, 730940), (644, 652625), (700, 600415), (805, 522100), (875, 480332), (908, 462875), (1058, 397250), (1135, 370300), (1150, 365470), (1589, 264500), (1610, 261050), (1750, 240166), (2116, 198625), (2270, 185150), (2300, 182735), (2645, 158900), (2875, 146188), (3178, 132250), (3220, 130525), (3500, 120083), (3703, 113500), (4025, 104420), (4540, 92575), (5221, 80500), (5290, 79450), (5675, 74060), (5750, 73094), (6356, 66125), (7406, 56750), (7945, 52900), (8050, 52210), (10442, 40250), (10580, 39725), (11350, 37030), (11500, 36547), (13225, 31780), (14812, 28375), (15890, 26450), (16100, 26105), (18515, 22700), (20125, 20884)]