77984760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{353}}^1$

素因数の和:637

約数の個数: 128

約数和(自身を含む): 269153280

約数和(自身を除く): 191168520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 263, 280, 353, 420, 526, 706, 789, 840, 1052, 1059, 1315, 1412, 1578, 1765, 1841, 2104, 2118, 2471, 2630, 2824, 3156, 3530, 3682, 3945, 4236, 4942, 5260, 5295, 5523, 6312, 7060, 7364, 7413, 7890, 8472, 9205, 9884, 10520, 10590, 11046, 12355, 14120, 14728, 14826, 15780, 18410, 19768, 21180, 22092, 24710, 27615, 29652, 31560, 36820, 37065, 42360, 44184, 49420, 55230, 59304, 73640, 74130, 92839, 98840, 110460, 148260, 185678, 220920, 278517, 296520, 371356, 464195, 557034, 649873, 742712, 928390, 1114068, 1299746, 1392585, 1856780, 1949619, 2228136, 2599492, 2785170, 3249365, 3713560, 3899238, 5198984, 5570340, 6498730, 7798476, 9748095, 11140680, 12997460, 15596952, 19496190, 25994920, 38992380, 77984760]

約数ペア:

[(1, 77984760), (2, 38992380), (3, 25994920), (4, 19496190), (5, 15596952), (6, 12997460), (7, 11140680), (8, 9748095), (10, 7798476), (12, 6498730), (14, 5570340), (15, 5198984), (20, 3899238), (21, 3713560), (24, 3249365), (28, 2785170), (30, 2599492), (35, 2228136), (40, 1949619), (42, 1856780), (56, 1392585), (60, 1299746), (70, 1114068), (84, 928390), (105, 742712), (120, 649873), (140, 557034), (168, 464195), (210, 371356), (263, 296520), (280, 278517), (353, 220920), (420, 185678), (526, 148260), (706, 110460), (789, 98840), (840, 92839), (1052, 74130), (1059, 73640), (1315, 59304), (1412, 55230), (1578, 49420), (1765, 44184), (1841, 42360), (2104, 37065), (2118, 36820), (2471, 31560), (2630, 29652), (2824, 27615), (3156, 24710), (3530, 22092), (3682, 21180), (3945, 19768), (4236, 18410), (4942, 15780), (5260, 14826), (5295, 14728), (5523, 14120), (6312, 12355), (7060, 11046), (7364, 10590), (7413, 10520), (7890, 9884), (8472, 9205)]