18917500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:101

約数の個数: 120

約数和(自身を含む): 50383872

約数和(自身を除く): 31466372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 47, 50, 70, 92, 94, 100, 115, 125, 140, 161, 175, 188, 230, 235, 250, 322, 329, 350, 460, 470, 500, 575, 625, 644, 658, 700, 805, 875, 940, 1081, 1150, 1175, 1250, 1316, 1610, 1645, 1750, 2162, 2300, 2350, 2500, 2875, 3220, 3290, 3500, 4025, 4324, 4375, 4700, 5405, 5750, 5875, 6580, 7567, 8050, 8225, 8750, 10810, 11500, 11750, 14375, 15134, 16100, 16450, 17500, 20125, 21620, 23500, 27025, 28750, 29375, 30268, 32900, 37835, 40250, 41125, 54050, 57500, 58750, 75670, 80500, 82250, 100625, 108100, 117500, 135125, 151340, 164500, 189175, 201250, 205625, 270250, 378350, 402500, 411250, 540500, 675625, 756700, 822500, 945875, 1351250, 1891750, 2702500, 3783500, 4729375, 9458750, 18917500]

約数ペア:

[(1, 18917500), (2, 9458750), (4, 4729375), (5, 3783500), (7, 2702500), (10, 1891750), (14, 1351250), (20, 945875), (23, 822500), (25, 756700), (28, 675625), (35, 540500), (46, 411250), (47, 402500), (50, 378350), (70, 270250), (92, 205625), (94, 201250), (100, 189175), (115, 164500), (125, 151340), (140, 135125), (161, 117500), (175, 108100), (188, 100625), (230, 82250), (235, 80500), (250, 75670), (322, 58750), (329, 57500), (350, 54050), (460, 41125), (470, 40250), (500, 37835), (575, 32900), (625, 30268), (644, 29375), (658, 28750), (700, 27025), (805, 23500), (875, 21620), (940, 20125), (1081, 17500), (1150, 16450), (1175, 16100), (1250, 15134), (1316, 14375), (1610, 11750), (1645, 11500), (1750, 10810), (2162, 8750), (2300, 8225), (2350, 8050), (2500, 7567), (2875, 6580), (3220, 5875), (3290, 5750), (3500, 5405), (4025, 4700), (4324, 4375)]