71021000

素因数分解:

$2^3\times 5^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:160

約数の個数: 128

約数和(自身を含む): 179712000

約数和(自身を除く): 108691000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 31, 40, 50, 58, 62, 79, 100, 116, 124, 125, 145, 155, 158, 200, 232, 248, 250, 290, 310, 316, 395, 500, 580, 620, 632, 725, 775, 790, 899, 1000, 1160, 1240, 1450, 1550, 1580, 1798, 1975, 2291, 2449, 2900, 3100, 3160, 3596, 3625, 3875, 3950, 4495, 4582, 4898, 5800, 6200, 7192, 7250, 7750, 7900, 8990, 9164, 9796, 9875, 11455, 12245, 14500, 15500, 15800, 17980, 18328, 19592, 19750, 22475, 22910, 24490, 29000, 31000, 35960, 39500, 44950, 45820, 48980, 57275, 61225, 71021, 79000, 89900, 91640, 97960, 112375, 114550, 122450, 142042, 179800, 224750, 229100, 244900, 284084, 286375, 306125, 355105, 449500, 458200, 489800, 568168, 572750, 612250, 710210, 899000, 1145500, 1224500, 1420420, 1775525, 2291000, 2449000, 2840840, 3551050, 7102100, 8877625, 14204200, 17755250, 35510500, 71021000]

約数ペア:

[(1, 71021000), (2, 35510500), (4, 17755250), (5, 14204200), (8, 8877625), (10, 7102100), (20, 3551050), (25, 2840840), (29, 2449000), (31, 2291000), (40, 1775525), (50, 1420420), (58, 1224500), (62, 1145500), (79, 899000), (100, 710210), (116, 612250), (124, 572750), (125, 568168), (145, 489800), (155, 458200), (158, 449500), (200, 355105), (232, 306125), (248, 286375), (250, 284084), (290, 244900), (310, 229100), (316, 224750), (395, 179800), (500, 142042), (580, 122450), (620, 114550), (632, 112375), (725, 97960), (775, 91640), (790, 89900), (899, 79000), (1000, 71021), (1160, 61225), (1240, 57275), (1450, 48980), (1550, 45820), (1580, 44950), (1798, 39500), (1975, 35960), (2291, 31000), (2449, 29000), (2900, 24490), (3100, 22910), (3160, 22475), (3596, 19750), (3625, 19592), (3875, 18328), (3950, 17980), (4495, 15800), (4582, 15500), (4898, 14500), (5800, 12245), (6200, 11455), (7192, 9875), (7250, 9796), (7750, 9164), (7900, 8990)]