210955000

素因数分解:

$2^3\times 5^4\times {\mathrm{31}}^1\times {\mathrm{1361}}^1$

素因数の和:1418

約数の個数: 80

約数和(自身を含む): 510586560

約数和(自身を除く): 299631560

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 125, 155, 200, 248, 250, 310, 500, 620, 625, 775, 1000, 1240, 1250, 1361, 1550, 2500, 2722, 3100, 3875, 5000, 5444, 6200, 6805, 7750, 10888, 13610, 15500, 19375, 27220, 31000, 34025, 38750, 42191, 54440, 68050, 77500, 84382, 136100, 155000, 168764, 170125, 210955, 272200, 337528, 340250, 421910, 680500, 843820, 850625, 1054775, 1361000, 1687640, 1701250, 2109550, 3402500, 4219100, 5273875, 6805000, 8438200, 10547750, 21095500, 26369375, 42191000, 52738750, 105477500, 210955000]

約数ペア:

[(1, 210955000), (2, 105477500), (4, 52738750), (5, 42191000), (8, 26369375), (10, 21095500), (20, 10547750), (25, 8438200), (31, 6805000), (40, 5273875), (50, 4219100), (62, 3402500), (100, 2109550), (124, 1701250), (125, 1687640), (155, 1361000), (200, 1054775), (248, 850625), (250, 843820), (310, 680500), (500, 421910), (620, 340250), (625, 337528), (775, 272200), (1000, 210955), (1240, 170125), (1250, 168764), (1361, 155000), (1550, 136100), (2500, 84382), (2722, 77500), (3100, 68050), (3875, 54440), (5000, 42191), (5444, 38750), (6200, 34025), (6805, 31000), (7750, 27220), (10888, 19375), (13610, 15500)]