251551980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5009}}^1$

素因数の和:5061

約数の個数: 120

約数和(自身を含む): 814746240

約数和(自身を除く): 563194260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 81, 90, 93, 108, 124, 135, 155, 162, 180, 186, 270, 279, 310, 324, 372, 405, 465, 540, 558, 620, 810, 837, 930, 1116, 1395, 1620, 1674, 1860, 2511, 2790, 3348, 4185, 5009, 5022, 5580, 8370, 10018, 10044, 12555, 15027, 16740, 20036, 25045, 25110, 30054, 45081, 50090, 50220, 60108, 75135, 90162, 100180, 135243, 150270, 155279, 180324, 225405, 270486, 300540, 310558, 405729, 450810, 465837, 540972, 621116, 676215, 776395, 811458, 901620, 931674, 1352430, 1397511, 1552790, 1622916, 1863348, 2028645, 2329185, 2704860, 2795022, 3105580, 4057290, 4192533, 4658370, 5590044, 6987555, 8114580, 8385066, 9316740, 12577599, 13975110, 16770132, 20962665, 25155198, 27950220, 41925330, 50310396, 62887995, 83850660, 125775990, 251551980]

約数ペア:

[(1, 251551980), (2, 125775990), (3, 83850660), (4, 62887995), (5, 50310396), (6, 41925330), (9, 27950220), (10, 25155198), (12, 20962665), (15, 16770132), (18, 13975110), (20, 12577599), (27, 9316740), (30, 8385066), (31, 8114580), (36, 6987555), (45, 5590044), (54, 4658370), (60, 4192533), (62, 4057290), (81, 3105580), (90, 2795022), (93, 2704860), (108, 2329185), (124, 2028645), (135, 1863348), (155, 1622916), (162, 1552790), (180, 1397511), (186, 1352430), (270, 931674), (279, 901620), (310, 811458), (324, 776395), (372, 676215), (405, 621116), (465, 540972), (540, 465837), (558, 450810), (620, 405729), (810, 310558), (837, 300540), (930, 270486), (1116, 225405), (1395, 180324), (1620, 155279), (1674, 150270), (1860, 135243), (2511, 100180), (2790, 90162), (3348, 75135), (4185, 60108), (5009, 50220), (5022, 50090), (5580, 45081), (8370, 30054), (10018, 25110), (10044, 25045), (12555, 20036), (15027, 16740)]