79391000

素因数分解:

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

素因数の和:262

約数の個数: 128

約数和(自身を含む): 207567360

約数和(自身を除く): 128176360

約数列:

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

約数ペア:

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