18782680

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{37}}^2$

素因数の和:106

約数の個数: 96

約数和(自身を含む): 50652000

約数和(自身を除く): 31869320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 49, 56, 70, 74, 98, 140, 148, 185, 196, 245, 259, 280, 296, 343, 370, 392, 490, 518, 686, 740, 980, 1036, 1295, 1369, 1372, 1480, 1715, 1813, 1960, 2072, 2590, 2738, 2744, 3430, 3626, 5180, 5476, 6845, 6860, 7252, 9065, 9583, 10360, 10952, 12691, 13690, 13720, 14504, 18130, 19166, 25382, 27380, 36260, 38332, 47915, 50764, 54760, 63455, 67081, 72520, 76664, 95830, 101528, 126910, 134162, 191660, 253820, 268324, 335405, 383320, 469567, 507640, 536648, 670810, 939134, 1341620, 1878268, 2347835, 2683240, 3756536, 4695670, 9391340, 18782680]

約数ペア:

[(1, 18782680), (2, 9391340), (4, 4695670), (5, 3756536), (7, 2683240), (8, 2347835), (10, 1878268), (14, 1341620), (20, 939134), (28, 670810), (35, 536648), (37, 507640), (40, 469567), (49, 383320), (56, 335405), (70, 268324), (74, 253820), (98, 191660), (140, 134162), (148, 126910), (185, 101528), (196, 95830), (245, 76664), (259, 72520), (280, 67081), (296, 63455), (343, 54760), (370, 50764), (392, 47915), (490, 38332), (518, 36260), (686, 27380), (740, 25382), (980, 19166), (1036, 18130), (1295, 14504), (1369, 13720), (1372, 13690), (1480, 12691), (1715, 10952), (1813, 10360), (1960, 9583), (2072, 9065), (2590, 7252), (2738, 6860), (2744, 6845), (3430, 5476), (3626, 5180)]