81475240

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{3779}}^1$

素因数の和:3815

約数の個数: 96

約数和(自身を含む): 232696800

約数和(自身を除く): 151221560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 88, 98, 110, 140, 154, 196, 220, 245, 280, 308, 385, 392, 440, 490, 539, 616, 770, 980, 1078, 1540, 1960, 2156, 2695, 3080, 3779, 4312, 5390, 7558, 10780, 15116, 18895, 21560, 26453, 30232, 37790, 41569, 52906, 75580, 83138, 105812, 132265, 151160, 166276, 185171, 207845, 211624, 264530, 290983, 332552, 370342, 415690, 529060, 581966, 740684, 831380, 925855, 1058120, 1163932, 1454915, 1481368, 1662760, 1851710, 2036881, 2327864, 2909830, 3703420, 4073762, 5819660, 7406840, 8147524, 10184405, 11639320, 16295048, 20368810, 40737620, 81475240]

約数ペア:

[(1, 81475240), (2, 40737620), (4, 20368810), (5, 16295048), (7, 11639320), (8, 10184405), (10, 8147524), (11, 7406840), (14, 5819660), (20, 4073762), (22, 3703420), (28, 2909830), (35, 2327864), (40, 2036881), (44, 1851710), (49, 1662760), (55, 1481368), (56, 1454915), (70, 1163932), (77, 1058120), (88, 925855), (98, 831380), (110, 740684), (140, 581966), (154, 529060), (196, 415690), (220, 370342), (245, 332552), (280, 290983), (308, 264530), (385, 211624), (392, 207845), (440, 185171), (490, 166276), (539, 151160), (616, 132265), (770, 105812), (980, 83138), (1078, 75580), (1540, 52906), (1960, 41569), (2156, 37790), (2695, 30232), (3080, 26453), (3779, 21560), (4312, 18895), (5390, 15116), (7558, 10780)]