18686500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1$

素因数の和:326

約数の個数: 96

約数和(自身を含む): 49271040

約数和(自身を除く): 30584540

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 35, 38, 50, 70, 76, 95, 100, 125, 133, 140, 175, 190, 250, 266, 281, 350, 380, 475, 500, 532, 562, 665, 700, 875, 950, 1124, 1330, 1405, 1750, 1900, 1967, 2375, 2660, 2810, 3325, 3500, 3934, 4750, 5339, 5620, 6650, 7025, 7868, 9500, 9835, 10678, 13300, 14050, 16625, 19670, 21356, 26695, 28100, 33250, 35125, 37373, 39340, 49175, 53390, 66500, 70250, 74746, 98350, 106780, 133475, 140500, 149492, 186865, 196700, 245875, 266950, 373730, 491750, 533900, 667375, 747460, 934325, 983500, 1334750, 1868650, 2669500, 3737300, 4671625, 9343250, 18686500]

約数ペア:

[(1, 18686500), (2, 9343250), (4, 4671625), (5, 3737300), (7, 2669500), (10, 1868650), (14, 1334750), (19, 983500), (20, 934325), (25, 747460), (28, 667375), (35, 533900), (38, 491750), (50, 373730), (70, 266950), (76, 245875), (95, 196700), (100, 186865), (125, 149492), (133, 140500), (140, 133475), (175, 106780), (190, 98350), (250, 74746), (266, 70250), (281, 66500), (350, 53390), (380, 49175), (475, 39340), (500, 37373), (532, 35125), (562, 33250), (665, 28100), (700, 26695), (875, 21356), (950, 19670), (1124, 16625), (1330, 14050), (1405, 13300), (1750, 10678), (1900, 9835), (1967, 9500), (2375, 7868), (2660, 7025), (2810, 6650), (3325, 5620), (3500, 5339), (3934, 4750)]