18656243620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1\times {\mathrm{3461}}^1$

素因数の和:3893

約数の個数: 96

約数和(自身を含む): 45272989440

約数和(自身を除く): 26616745820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 277, 278, 554, 556, 695, 973, 1108, 1385, 1390, 1939, 1946, 2770, 2780, 3461, 3878, 3892, 4865, 5540, 6922, 7756, 9695, 9730, 13844, 17305, 19390, 19460, 24227, 34610, 38503, 38780, 48454, 69220, 77006, 96908, 121135, 154012, 192515, 242270, 269521, 385030, 481079, 484540, 539042, 770060, 958697, 962158, 1078084, 1347605, 1917394, 1924316, 2405395, 2695210, 3367553, 3834788, 4793485, 4810790, 5390420, 6710879, 6735106, 9586970, 9621580, 13421758, 13470212, 16837765, 19173940, 26843516, 33554395, 33675530, 67108790, 67351060, 133258883, 134217580, 266517766, 533035532, 666294415, 932812181, 1332588830, 1865624362, 2665177660, 3731248724, 4664060905, 9328121810, 18656243620]

約数ペア:

[(1, 18656243620), (2, 9328121810), (4, 4664060905), (5, 3731248724), (7, 2665177660), (10, 1865624362), (14, 1332588830), (20, 932812181), (28, 666294415), (35, 533035532), (70, 266517766), (139, 134217580), (140, 133258883), (277, 67351060), (278, 67108790), (554, 33675530), (556, 33554395), (695, 26843516), (973, 19173940), (1108, 16837765), (1385, 13470212), (1390, 13421758), (1939, 9621580), (1946, 9586970), (2770, 6735106), (2780, 6710879), (3461, 5390420), (3878, 4810790), (3892, 4793485), (4865, 3834788), (5540, 3367553), (6922, 2695210), (7756, 2405395), (9695, 1924316), (9730, 1917394), (13844, 1347605), (17305, 1078084), (19390, 962158), (19460, 958697), (24227, 770060), (34610, 539042), (38503, 484540), (38780, 481079), (48454, 385030), (69220, 269521), (77006, 242270), (96908, 192515), (121135, 154012)]