31871000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:214

約数の個数: 128

約数和(自身を含む): 88732800

約数和(自身を除く): 56861800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 29, 35, 40, 50, 56, 58, 70, 100, 116, 125, 140, 145, 157, 175, 200, 203, 232, 250, 280, 290, 314, 350, 406, 500, 580, 628, 700, 725, 785, 812, 875, 1000, 1015, 1099, 1160, 1256, 1400, 1450, 1570, 1624, 1750, 2030, 2198, 2900, 3140, 3500, 3625, 3925, 4060, 4396, 4553, 5075, 5495, 5800, 6280, 7000, 7250, 7850, 8120, 8792, 9106, 10150, 10990, 14500, 15700, 18212, 19625, 20300, 21980, 22765, 25375, 27475, 29000, 31400, 31871, 36424, 39250, 40600, 43960, 45530, 50750, 54950, 63742, 78500, 91060, 101500, 109900, 113825, 127484, 137375, 157000, 159355, 182120, 203000, 219800, 227650, 254968, 274750, 318710, 455300, 549500, 569125, 637420, 796775, 910600, 1099000, 1138250, 1274840, 1593550, 2276500, 3187100, 3983875, 4553000, 6374200, 7967750, 15935500, 31871000]

約数ペア:

[(1, 31871000), (2, 15935500), (4, 7967750), (5, 6374200), (7, 4553000), (8, 3983875), (10, 3187100), (14, 2276500), (20, 1593550), (25, 1274840), (28, 1138250), (29, 1099000), (35, 910600), (40, 796775), (50, 637420), (56, 569125), (58, 549500), (70, 455300), (100, 318710), (116, 274750), (125, 254968), (140, 227650), (145, 219800), (157, 203000), (175, 182120), (200, 159355), (203, 157000), (232, 137375), (250, 127484), (280, 113825), (290, 109900), (314, 101500), (350, 91060), (406, 78500), (500, 63742), (580, 54950), (628, 50750), (700, 45530), (725, 43960), (785, 40600), (812, 39250), (875, 36424), (1000, 31871), (1015, 31400), (1099, 29000), (1160, 27475), (1256, 25375), (1400, 22765), (1450, 21980), (1570, 20300), (1624, 19625), (1750, 18212), (2030, 15700), (2198, 14500), (2900, 10990), (3140, 10150), (3500, 9106), (3625, 8792), (3925, 8120), (4060, 7850), (4396, 7250), (4553, 7000), (5075, 6280), (5495, 5800)]