20986260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{449}}^1$

素因数の和:521

約数の個数: 96

約数和(自身を含む): 63504000

約数和(自身を除く): 42517740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 41, 57, 60, 76, 82, 95, 114, 123, 164, 190, 205, 228, 246, 285, 380, 410, 449, 492, 570, 615, 779, 820, 898, 1140, 1230, 1347, 1558, 1796, 2245, 2337, 2460, 2694, 3116, 3895, 4490, 4674, 5388, 6735, 7790, 8531, 8980, 9348, 11685, 13470, 15580, 17062, 18409, 23370, 25593, 26940, 34124, 36818, 42655, 46740, 51186, 55227, 73636, 85310, 92045, 102372, 110454, 127965, 170620, 184090, 220908, 255930, 276135, 349771, 368180, 511860, 552270, 699542, 1049313, 1104540, 1399084, 1748855, 2098626, 3497710, 4197252, 5246565, 6995420, 10493130, 20986260]

約数ペア:

[(1, 20986260), (2, 10493130), (3, 6995420), (4, 5246565), (5, 4197252), (6, 3497710), (10, 2098626), (12, 1748855), (15, 1399084), (19, 1104540), (20, 1049313), (30, 699542), (38, 552270), (41, 511860), (57, 368180), (60, 349771), (76, 276135), (82, 255930), (95, 220908), (114, 184090), (123, 170620), (164, 127965), (190, 110454), (205, 102372), (228, 92045), (246, 85310), (285, 73636), (380, 55227), (410, 51186), (449, 46740), (492, 42655), (570, 36818), (615, 34124), (779, 26940), (820, 25593), (898, 23370), (1140, 18409), (1230, 17062), (1347, 15580), (1558, 13470), (1796, 11685), (2245, 9348), (2337, 8980), (2460, 8531), (2694, 7790), (3116, 6735), (3895, 5388), (4490, 4674)]