82566640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:267

約数の個数: 120

約数和(自身を含む): 215664768

約数和(自身を除く): 133098128

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 169, 197, 208, 248, 260, 310, 338, 394, 403, 496, 520, 620, 676, 788, 806, 845, 985, 1040, 1240, 1352, 1576, 1612, 1690, 1970, 2015, 2480, 2561, 2704, 3152, 3224, 3380, 3940, 4030, 5122, 5239, 6107, 6448, 6760, 7880, 8060, 10244, 10478, 12214, 12805, 13520, 15760, 16120, 20488, 20956, 24428, 25610, 26195, 30535, 32240, 33293, 40976, 41912, 48856, 51220, 52390, 61070, 66586, 79391, 83824, 97712, 102440, 104780, 122140, 133172, 158782, 166465, 204880, 209560, 244280, 266344, 317564, 332930, 396955, 419120, 488560, 532688, 635128, 665860, 793910, 1032083, 1270256, 1331720, 1587820, 2064166, 2663440, 3175640, 4128332, 5160415, 6351280, 8256664, 10320830, 16513328, 20641660, 41283320, 82566640]

約数ペア:

[(1, 82566640), (2, 41283320), (4, 20641660), (5, 16513328), (8, 10320830), (10, 8256664), (13, 6351280), (16, 5160415), (20, 4128332), (26, 3175640), (31, 2663440), (40, 2064166), (52, 1587820), (62, 1331720), (65, 1270256), (80, 1032083), (104, 793910), (124, 665860), (130, 635128), (155, 532688), (169, 488560), (197, 419120), (208, 396955), (248, 332930), (260, 317564), (310, 266344), (338, 244280), (394, 209560), (403, 204880), (496, 166465), (520, 158782), (620, 133172), (676, 122140), (788, 104780), (806, 102440), (845, 97712), (985, 83824), (1040, 79391), (1240, 66586), (1352, 61070), (1576, 52390), (1612, 51220), (1690, 48856), (1970, 41912), (2015, 40976), (2480, 33293), (2561, 32240), (2704, 30535), (3152, 26195), (3224, 25610), (3380, 24428), (3940, 20956), (4030, 20488), (5122, 16120), (5239, 15760), (6107, 13520), (6448, 12805), (6760, 12214), (7880, 10478), (8060, 10244)]