28782810

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:277

約数の個数: 128

約数和(自身を含む): 89187840

約数和(自身を除く): 60405030

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 97, 105, 126, 135, 157, 189, 194, 210, 270, 291, 314, 315, 378, 471, 485, 582, 630, 679, 785, 873, 942, 945, 970, 1099, 1358, 1413, 1455, 1570, 1746, 1890, 2037, 2198, 2355, 2619, 2826, 2910, 3297, 3395, 4074, 4239, 4365, 4710, 5238, 5495, 6111, 6594, 6790, 7065, 8478, 8730, 9891, 10185, 10990, 12222, 13095, 14130, 15229, 16485, 18333, 19782, 20370, 21195, 26190, 29673, 30458, 30555, 32970, 36666, 42390, 45687, 49455, 59346, 61110, 76145, 91374, 91665, 98910, 106603, 137061, 148365, 152290, 183330, 213206, 228435, 274122, 296730, 319809, 411183, 456870, 533015, 639618, 685305, 822366, 959427, 1066030, 1370610, 1599045, 1918854, 2055915, 2878281, 3198090, 4111830, 4797135, 5756562, 9594270, 14391405, 28782810]

約数ペア:

[(1, 28782810), (2, 14391405), (3, 9594270), (5, 5756562), (6, 4797135), (7, 4111830), (9, 3198090), (10, 2878281), (14, 2055915), (15, 1918854), (18, 1599045), (21, 1370610), (27, 1066030), (30, 959427), (35, 822366), (42, 685305), (45, 639618), (54, 533015), (63, 456870), (70, 411183), (90, 319809), (97, 296730), (105, 274122), (126, 228435), (135, 213206), (157, 183330), (189, 152290), (194, 148365), (210, 137061), (270, 106603), (291, 98910), (314, 91665), (315, 91374), (378, 76145), (471, 61110), (485, 59346), (582, 49455), (630, 45687), (679, 42390), (785, 36666), (873, 32970), (942, 30555), (945, 30458), (970, 29673), (1099, 26190), (1358, 21195), (1413, 20370), (1455, 19782), (1570, 18333), (1746, 16485), (1890, 15229), (2037, 14130), (2198, 13095), (2355, 12222), (2619, 10990), (2826, 10185), (2910, 9891), (3297, 8730), (3395, 8478), (4074, 7065), (4239, 6790), (4365, 6594), (4710, 6111), (5238, 5495)]