158987500

素因数分解:

$2^2\times 5^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:138

約数の個数: 144

約数和(自身を含む): 419973120

約数和(自身を除く): 260985620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 79, 92, 100, 115, 125, 140, 158, 161, 175, 230, 250, 316, 322, 350, 395, 460, 500, 553, 575, 625, 644, 700, 790, 805, 875, 1106, 1150, 1250, 1580, 1610, 1750, 1817, 1975, 2212, 2300, 2500, 2765, 2875, 3125, 3220, 3500, 3634, 3950, 4025, 4375, 5530, 5750, 6250, 7268, 7900, 8050, 8750, 9085, 9875, 11060, 11500, 12500, 12719, 13825, 14375, 16100, 17500, 18170, 19750, 20125, 21875, 25438, 27650, 28750, 36340, 39500, 40250, 43750, 45425, 49375, 50876, 55300, 57500, 63595, 69125, 71875, 80500, 87500, 90850, 98750, 100625, 127190, 138250, 143750, 181700, 197500, 201250, 227125, 246875, 254380, 276500, 287500, 317975, 345625, 402500, 454250, 493750, 503125, 635950, 691250, 908500, 987500, 1006250, 1135625, 1271900, 1382500, 1589875, 1728125, 2012500, 2271250, 3179750, 3456250, 4542500, 5678125, 6359500, 6912500, 7949375, 11356250, 15898750, 22712500, 31797500, 39746875, 79493750, 158987500]

約数ペア:

[(1, 158987500), (2, 79493750), (4, 39746875), (5, 31797500), (7, 22712500), (10, 15898750), (14, 11356250), (20, 7949375), (23, 6912500), (25, 6359500), (28, 5678125), (35, 4542500), (46, 3456250), (50, 3179750), (70, 2271250), (79, 2012500), (92, 1728125), (100, 1589875), (115, 1382500), (125, 1271900), (140, 1135625), (158, 1006250), (161, 987500), (175, 908500), (230, 691250), (250, 635950), (316, 503125), (322, 493750), (350, 454250), (395, 402500), (460, 345625), (500, 317975), (553, 287500), (575, 276500), (625, 254380), (644, 246875), (700, 227125), (790, 201250), (805, 197500), (875, 181700), (1106, 143750), (1150, 138250), (1250, 127190), (1580, 100625), (1610, 98750), (1750, 90850), (1817, 87500), (1975, 80500), (2212, 71875), (2300, 69125), (2500, 63595), (2765, 57500), (2875, 55300), (3125, 50876), (3220, 49375), (3500, 45425), (3634, 43750), (3950, 40250), (4025, 39500), (4375, 36340), (5530, 28750), (5750, 27650), (6250, 25438), (7268, 21875), (7900, 20125), (8050, 19750), (8750, 18170), (9085, 17500), (9875, 16100), (11060, 14375), (11500, 13825), (12500, 12719)]