278662440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2113}}^1$

素因数の和:2291

約数の個数: 128

約数和(自身を含む): 961954560

約数和(自身を除く): 683292120

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, 157, 168, 210, 280, 314, 420, 471, 628, 785, 840, 942, 1099, 1256, 1570, 1884, 2113, 2198, 2355, 3140, 3297, 3768, 4226, 4396, 4710, 5495, 6280, 6339, 6594, 8452, 8792, 9420, 10565, 10990, 12678, 13188, 14791, 16485, 16904, 18840, 21130, 21980, 25356, 26376, 29582, 31695, 32970, 42260, 43960, 44373, 50712, 59164, 63390, 65940, 73955, 84520, 88746, 118328, 126780, 131880, 147910, 177492, 221865, 253560, 295820, 331741, 354984, 443730, 591640, 663482, 887460, 995223, 1326964, 1658705, 1774920, 1990446, 2322187, 2653928, 3317410, 3980892, 4644374, 4976115, 6634820, 6966561, 7961784, 9288748, 9952230, 11610935, 13269640, 13933122, 18577496, 19904460, 23221870, 27866244, 34832805, 39808920, 46443740, 55732488, 69665610, 92887480, 139331220, 278662440]

約数ペア:

[(1, 278662440), (2, 139331220), (3, 92887480), (4, 69665610), (5, 55732488), (6, 46443740), (7, 39808920), (8, 34832805), (10, 27866244), (12, 23221870), (14, 19904460), (15, 18577496), (20, 13933122), (21, 13269640), (24, 11610935), (28, 9952230), (30, 9288748), (35, 7961784), (40, 6966561), (42, 6634820), (56, 4976115), (60, 4644374), (70, 3980892), (84, 3317410), (105, 2653928), (120, 2322187), (140, 1990446), (157, 1774920), (168, 1658705), (210, 1326964), (280, 995223), (314, 887460), (420, 663482), (471, 591640), (628, 443730), (785, 354984), (840, 331741), (942, 295820), (1099, 253560), (1256, 221865), (1570, 177492), (1884, 147910), (2113, 131880), (2198, 126780), (2355, 118328), (3140, 88746), (3297, 84520), (3768, 73955), (4226, 65940), (4396, 63390), (4710, 59164), (5495, 50712), (6280, 44373), (6339, 43960), (6594, 42260), (8452, 32970), (8792, 31695), (9420, 29582), (10565, 26376), (10990, 25356), (12678, 21980), (13188, 21130), (14791, 18840), (16485, 16904)]