2015189875

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{271}}^1$

素因数の和:437

約数の個数: 64

約数和(自身を含む): 2769960960

約数和(自身を除く): 754771085

約数列:

[1, 5, 19, 25, 31, 95, 101, 125, 155, 271, 475, 505, 589, 775, 1355, 1919, 2375, 2525, 2945, 3131, 3875, 5149, 6775, 8401, 9595, 12625, 14725, 15655, 25745, 27371, 33875, 42005, 47975, 59489, 73625, 78275, 128725, 136855, 159619, 210025, 239875, 297445, 391375, 520049, 643625, 684275, 798095, 848501, 1050125, 1487225, 2600245, 3421375, 3990475, 4242505, 7436125, 13001225, 16121519, 19952375, 21212525, 65006125, 80607595, 106062625, 403037975, 2015189875]

約数ペア:

[(1, 2015189875), (5, 403037975), (19, 106062625), (25, 80607595), (31, 65006125), (95, 21212525), (101, 19952375), (125, 16121519), (155, 13001225), (271, 7436125), (475, 4242505), (505, 3990475), (589, 3421375), (775, 2600245), (1355, 1487225), (1919, 1050125), (2375, 848501), (2525, 798095), (2945, 684275), (3131, 643625), (3875, 520049), (5149, 391375), (6775, 297445), (8401, 239875), (9595, 210025), (12625, 159619), (14725, 136855), (15655, 128725), (25745, 78275), (27371, 73625), (33875, 59489), (42005, 47975)]