158782000

素因数分解:

$2^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:264

約数の個数: 160

約数和(自身を含む): 428972544

約数和(自身を除く): 270190544

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 40, 50, 52, 62, 65, 80, 100, 104, 124, 125, 130, 155, 197, 200, 208, 248, 250, 260, 310, 325, 394, 400, 403, 496, 500, 520, 620, 650, 775, 788, 806, 985, 1000, 1040, 1240, 1300, 1550, 1576, 1612, 1625, 1970, 2000, 2015, 2480, 2561, 2600, 3100, 3152, 3224, 3250, 3875, 3940, 4030, 4925, 5122, 5200, 6107, 6200, 6448, 6500, 7750, 7880, 8060, 9850, 10075, 10244, 12214, 12400, 12805, 13000, 15500, 15760, 16120, 19700, 20150, 20488, 24428, 24625, 25610, 26000, 30535, 31000, 32240, 39400, 40300, 40976, 48856, 49250, 50375, 51220, 61070, 62000, 64025, 78800, 79391, 80600, 97712, 98500, 100750, 102440, 122140, 128050, 152675, 158782, 161200, 197000, 201500, 204880, 244280, 256100, 305350, 317564, 320125, 394000, 396955, 403000, 488560, 512200, 610700, 635128, 640250, 763375, 793910, 806000, 1024400, 1221400, 1270256, 1280500, 1526750, 1587820, 1984775, 2442800, 2561000, 3053500, 3175640, 3969550, 5122000, 6107000, 6351280, 7939100, 9923875, 12214000, 15878200, 19847750, 31756400, 39695500, 79391000, 158782000]

約数ペア:

[(1, 158782000), (2, 79391000), (4, 39695500), (5, 31756400), (8, 19847750), (10, 15878200), (13, 12214000), (16, 9923875), (20, 7939100), (25, 6351280), (26, 6107000), (31, 5122000), (40, 3969550), (50, 3175640), (52, 3053500), (62, 2561000), (65, 2442800), (80, 1984775), (100, 1587820), (104, 1526750), (124, 1280500), (125, 1270256), (130, 1221400), (155, 1024400), (197, 806000), (200, 793910), (208, 763375), (248, 640250), (250, 635128), (260, 610700), (310, 512200), (325, 488560), (394, 403000), (400, 396955), (403, 394000), (496, 320125), (500, 317564), (520, 305350), (620, 256100), (650, 244280), (775, 204880), (788, 201500), (806, 197000), (985, 161200), (1000, 158782), (1040, 152675), (1240, 128050), (1300, 122140), (1550, 102440), (1576, 100750), (1612, 98500), (1625, 97712), (1970, 80600), (2000, 79391), (2015, 78800), (2480, 64025), (2561, 62000), (2600, 61070), (3100, 51220), (3152, 50375), (3224, 49250), (3250, 48856), (3875, 40976), (3940, 40300), (4030, 39400), (4925, 32240), (5122, 31000), (5200, 30535), (6107, 26000), (6200, 25610), (6448, 24625), (6500, 24428), (7750, 20488), (7880, 20150), (8060, 19700), (9850, 16120), (10075, 15760), (10244, 15500), (12214, 13000), (12400, 12805)]