20125640500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{919}}^1\times {\mathrm{6257}}^1$

素因数の和:7202

約数の個数: 96

約数和(自身を含む): 50296296960

約数和(自身を除く): 30170656460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 250, 350, 500, 700, 875, 919, 1750, 1838, 3500, 3676, 4595, 6257, 6433, 9190, 12514, 12866, 18380, 22975, 25028, 25732, 31285, 32165, 43799, 45950, 62570, 64330, 87598, 91900, 114875, 125140, 128660, 156425, 160825, 175196, 218995, 229750, 312850, 321650, 437990, 459500, 625700, 643300, 782125, 804125, 875980, 1094975, 1564250, 1608250, 2189950, 3128500, 3216500, 4379900, 5474875, 5750183, 10949750, 11500366, 21899500, 23000732, 28750915, 40251281, 57501830, 80502562, 115003660, 143754575, 161005124, 201256405, 287509150, 402512810, 575018300, 718772875, 805025620, 1006282025, 1437545750, 2012564050, 2875091500, 4025128100, 5031410125, 10062820250, 20125640500]

約数ペア:

[(1, 20125640500), (2, 10062820250), (4, 5031410125), (5, 4025128100), (7, 2875091500), (10, 2012564050), (14, 1437545750), (20, 1006282025), (25, 805025620), (28, 718772875), (35, 575018300), (50, 402512810), (70, 287509150), (100, 201256405), (125, 161005124), (140, 143754575), (175, 115003660), (250, 80502562), (350, 57501830), (500, 40251281), (700, 28750915), (875, 23000732), (919, 21899500), (1750, 11500366), (1838, 10949750), (3500, 5750183), (3676, 5474875), (4595, 4379900), (6257, 3216500), (6433, 3128500), (9190, 2189950), (12514, 1608250), (12866, 1564250), (18380, 1094975), (22975, 875980), (25028, 804125), (25732, 782125), (31285, 643300), (32165, 625700), (43799, 459500), (45950, 437990), (62570, 321650), (64330, 312850), (87598, 229750), (91900, 218995), (114875, 175196), (125140, 160825), (128660, 156425)]