18508920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 60445440

約数和(自身を除く): 41936520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 43, 51, 60, 68, 85, 86, 102, 120, 129, 136, 170, 172, 204, 211, 215, 255, 258, 340, 344, 408, 422, 430, 510, 516, 633, 645, 680, 731, 844, 860, 1020, 1032, 1055, 1266, 1290, 1462, 1688, 1720, 2040, 2110, 2193, 2532, 2580, 2924, 3165, 3587, 3655, 4220, 4386, 5064, 5160, 5848, 6330, 7174, 7310, 8440, 8772, 9073, 10761, 10965, 12660, 14348, 14620, 17544, 17935, 18146, 21522, 21930, 25320, 27219, 28696, 29240, 35870, 36292, 43044, 43860, 45365, 53805, 54438, 71740, 72584, 86088, 87720, 90730, 107610, 108876, 136095, 143480, 154241, 181460, 215220, 217752, 272190, 308482, 362920, 430440, 462723, 544380, 616964, 771205, 925446, 1088760, 1233928, 1542410, 1850892, 2313615, 3084820, 3701784, 4627230, 6169640, 9254460, 18508920]

約数ペア:

[(1, 18508920), (2, 9254460), (3, 6169640), (4, 4627230), (5, 3701784), (6, 3084820), (8, 2313615), (10, 1850892), (12, 1542410), (15, 1233928), (17, 1088760), (20, 925446), (24, 771205), (30, 616964), (34, 544380), (40, 462723), (43, 430440), (51, 362920), (60, 308482), (68, 272190), (85, 217752), (86, 215220), (102, 181460), (120, 154241), (129, 143480), (136, 136095), (170, 108876), (172, 107610), (204, 90730), (211, 87720), (215, 86088), (255, 72584), (258, 71740), (340, 54438), (344, 53805), (408, 45365), (422, 43860), (430, 43044), (510, 36292), (516, 35870), (633, 29240), (645, 28696), (680, 27219), (731, 25320), (844, 21930), (860, 21522), (1020, 18146), (1032, 17935), (1055, 17544), (1266, 14620), (1290, 14348), (1462, 12660), (1688, 10965), (1720, 10761), (2040, 9073), (2110, 8772), (2193, 8440), (2532, 7310), (2580, 7174), (2924, 6330), (3165, 5848), (3587, 5160), (3655, 5064), (4220, 4386)]