205328340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1831}}^1$

素因数の和:1942

約数の個数: 144

約数和(自身を含む): 720195840

約数和(自身を除く): 514867500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 89, 90, 105, 126, 140, 178, 180, 210, 252, 267, 315, 356, 420, 445, 534, 623, 630, 801, 890, 1068, 1246, 1260, 1335, 1602, 1780, 1831, 1869, 2492, 2670, 3115, 3204, 3662, 3738, 4005, 5340, 5493, 5607, 6230, 7324, 7476, 8010, 9155, 9345, 10986, 11214, 12460, 12817, 16020, 16479, 18310, 18690, 21972, 22428, 25634, 27465, 28035, 32958, 36620, 37380, 38451, 51268, 54930, 56070, 64085, 65916, 76902, 82395, 109860, 112140, 115353, 128170, 153804, 162959, 164790, 192255, 230706, 256340, 325918, 329580, 384510, 461412, 488877, 576765, 651836, 769020, 814795, 977754, 1140713, 1153530, 1466631, 1629590, 1955508, 2281426, 2307060, 2444385, 2933262, 3259180, 3422139, 4562852, 4888770, 5703565, 5866524, 6844278, 7333155, 9777540, 10266417, 11407130, 13688556, 14666310, 17110695, 20532834, 22814260, 29332620, 34221390, 41065668, 51332085, 68442780, 102664170, 205328340]

約数ペア:

[(1, 205328340), (2, 102664170), (3, 68442780), (4, 51332085), (5, 41065668), (6, 34221390), (7, 29332620), (9, 22814260), (10, 20532834), (12, 17110695), (14, 14666310), (15, 13688556), (18, 11407130), (20, 10266417), (21, 9777540), (28, 7333155), (30, 6844278), (35, 5866524), (36, 5703565), (42, 4888770), (45, 4562852), (60, 3422139), (63, 3259180), (70, 2933262), (84, 2444385), (89, 2307060), (90, 2281426), (105, 1955508), (126, 1629590), (140, 1466631), (178, 1153530), (180, 1140713), (210, 977754), (252, 814795), (267, 769020), (315, 651836), (356, 576765), (420, 488877), (445, 461412), (534, 384510), (623, 329580), (630, 325918), (801, 256340), (890, 230706), (1068, 192255), (1246, 164790), (1260, 162959), (1335, 153804), (1602, 128170), (1780, 115353), (1831, 112140), (1869, 109860), (2492, 82395), (2670, 76902), (3115, 65916), (3204, 64085), (3662, 56070), (3738, 54930), (4005, 51268), (5340, 38451), (5493, 37380), (5607, 36620), (6230, 32958), (7324, 28035), (7476, 27465), (8010, 25634), (9155, 22428), (9345, 21972), (10986, 18690), (11214, 18310), (12460, 16479), (12817, 16020)]