81402120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1$

素因数の和:364

約数の個数: 192

約数和(自身を含む): 287089920

約数和(自身を除く): 205687800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 45, 47, 51, 60, 68, 72, 85, 90, 94, 102, 120, 136, 141, 153, 170, 180, 188, 204, 235, 255, 282, 283, 306, 340, 360, 376, 408, 423, 470, 510, 564, 566, 612, 680, 705, 765, 799, 846, 849, 940, 1020, 1128, 1132, 1224, 1410, 1415, 1530, 1598, 1692, 1698, 1880, 2040, 2115, 2264, 2397, 2547, 2820, 2830, 3060, 3196, 3384, 3396, 3995, 4230, 4245, 4794, 4811, 5094, 5640, 5660, 6120, 6392, 6792, 7191, 7990, 8460, 8490, 9588, 9622, 10188, 11320, 11985, 12735, 13301, 14382, 14433, 15980, 16920, 16980, 19176, 19244, 20376, 23970, 24055, 25470, 26602, 28764, 28866, 31960, 33960, 35955, 38488, 39903, 43299, 47940, 48110, 50940, 53204, 57528, 57732, 66505, 71910, 72165, 79806, 86598, 95880, 96220, 101880, 106408, 115464, 119709, 133010, 143820, 144330, 159612, 173196, 192440, 199515, 216495, 226117, 239418, 266020, 287640, 288660, 319224, 346392, 399030, 432990, 452234, 478836, 532040, 577320, 598545, 678351, 798060, 865980, 904468, 957672, 1130585, 1197090, 1356702, 1596120, 1731960, 1808936, 2035053, 2261170, 2394180, 2713404, 3391755, 4070106, 4522340, 4788360, 5426808, 6783510, 8140212, 9044680, 10175265, 13567020, 16280424, 20350530, 27134040, 40701060, 81402120]

約数ペア:

[(1, 81402120), (2, 40701060), (3, 27134040), (4, 20350530), (5, 16280424), (6, 13567020), (8, 10175265), (9, 9044680), (10, 8140212), (12, 6783510), (15, 5426808), (17, 4788360), (18, 4522340), (20, 4070106), (24, 3391755), (30, 2713404), (34, 2394180), (36, 2261170), (40, 2035053), (45, 1808936), (47, 1731960), (51, 1596120), (60, 1356702), (68, 1197090), (72, 1130585), (85, 957672), (90, 904468), (94, 865980), (102, 798060), (120, 678351), (136, 598545), (141, 577320), (153, 532040), (170, 478836), (180, 452234), (188, 432990), (204, 399030), (235, 346392), (255, 319224), (282, 288660), (283, 287640), (306, 266020), (340, 239418), (360, 226117), (376, 216495), (408, 199515), (423, 192440), (470, 173196), (510, 159612), (564, 144330), (566, 143820), (612, 133010), (680, 119709), (705, 115464), (765, 106408), (799, 101880), (846, 96220), (849, 95880), (940, 86598), (1020, 79806), (1128, 72165), (1132, 71910), (1224, 66505), (1410, 57732), (1415, 57528), (1530, 53204), (1598, 50940), (1692, 48110), (1698, 47940), (1880, 43299), (2040, 39903), (2115, 38488), (2264, 35955), (2397, 33960), (2547, 31960), (2820, 28866), (2830, 28764), (3060, 26602), (3196, 25470), (3384, 24055), (3396, 23970), (3995, 20376), (4230, 19244), (4245, 19176), (4794, 16980), (4811, 16920), (5094, 15980), (5640, 14433), (5660, 14382), (6120, 13301), (6392, 12735), (6792, 11985), (7191, 11320), (7990, 10188), (8460, 9622), (8490, 9588)]