65861380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{137}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 153605592

約数和(自身を除く): 87744212

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 137, 172, 215, 260, 274, 430, 548, 559, 685, 860, 1118, 1370, 1781, 1849, 2236, 2740, 2795, 3562, 3698, 5590, 5891, 7124, 7396, 8905, 9245, 11180, 11782, 17810, 18490, 23564, 24037, 29455, 35620, 36980, 48074, 58910, 76583, 96148, 117820, 120185, 153166, 240370, 253313, 306332, 382915, 480740, 506626, 765830, 1013252, 1266565, 1531660, 2533130, 3293069, 5066260, 6586138, 13172276, 16465345, 32930690, 65861380]

約数ペア:

[(1, 65861380), (2, 32930690), (4, 16465345), (5, 13172276), (10, 6586138), (13, 5066260), (20, 3293069), (26, 2533130), (43, 1531660), (52, 1266565), (65, 1013252), (86, 765830), (130, 506626), (137, 480740), (172, 382915), (215, 306332), (260, 253313), (274, 240370), (430, 153166), (548, 120185), (559, 117820), (685, 96148), (860, 76583), (1118, 58910), (1370, 48074), (1781, 36980), (1849, 35620), (2236, 29455), (2740, 24037), (2795, 23564), (3562, 18490), (3698, 17810), (5590, 11782), (5891, 11180), (7124, 9245), (7396, 8905)]