281337720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:417

約数の個数: 128

約数和(自身を含む): 863438400

約数和(自身を除く): 582100680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 109, 120, 137, 157, 218, 274, 314, 327, 411, 436, 471, 545, 548, 628, 654, 685, 785, 822, 872, 942, 1090, 1096, 1256, 1308, 1370, 1570, 1635, 1644, 1884, 2055, 2180, 2355, 2616, 2740, 3140, 3270, 3288, 3768, 4110, 4360, 4710, 5480, 6280, 6540, 8220, 9420, 13080, 14933, 16440, 17113, 18840, 21509, 29866, 34226, 43018, 44799, 51339, 59732, 64527, 68452, 74665, 85565, 86036, 89598, 102678, 107545, 119464, 129054, 136904, 149330, 171130, 172072, 179196, 205356, 215090, 223995, 256695, 258108, 298660, 322635, 342260, 358392, 410712, 430180, 447990, 513390, 516216, 597320, 645270, 684520, 860360, 895980, 1026780, 1290540, 1791960, 2053560, 2344481, 2581080, 4688962, 7033443, 9377924, 11722405, 14066886, 18755848, 23444810, 28133772, 35167215, 46889620, 56267544, 70334430, 93779240, 140668860, 281337720]

約数ペア:

[(1, 281337720), (2, 140668860), (3, 93779240), (4, 70334430), (5, 56267544), (6, 46889620), (8, 35167215), (10, 28133772), (12, 23444810), (15, 18755848), (20, 14066886), (24, 11722405), (30, 9377924), (40, 7033443), (60, 4688962), (109, 2581080), (120, 2344481), (137, 2053560), (157, 1791960), (218, 1290540), (274, 1026780), (314, 895980), (327, 860360), (411, 684520), (436, 645270), (471, 597320), (545, 516216), (548, 513390), (628, 447990), (654, 430180), (685, 410712), (785, 358392), (822, 342260), (872, 322635), (942, 298660), (1090, 258108), (1096, 256695), (1256, 223995), (1308, 215090), (1370, 205356), (1570, 179196), (1635, 172072), (1644, 171130), (1884, 149330), (2055, 136904), (2180, 129054), (2355, 119464), (2616, 107545), (2740, 102678), (3140, 89598), (3270, 86036), (3288, 85565), (3768, 74665), (4110, 68452), (4360, 64527), (4710, 59732), (5480, 51339), (6280, 44799), (6540, 43018), (8220, 34226), (9420, 29866), (13080, 21509), (14933, 18840), (16440, 17113)]