278478870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{1297}}^1$

素因数の和:1745

約数の個数: 64

約数和(自身を含む): 709891776

約数和(自身を除く): 431412906

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 421, 510, 842, 1263, 1297, 2105, 2526, 2594, 3891, 4210, 6315, 6485, 7157, 7782, 12630, 12970, 14314, 19455, 21471, 22049, 35785, 38910, 42942, 44098, 66147, 71570, 107355, 110245, 132294, 214710, 220490, 330735, 546037, 661470, 1092074, 1638111, 2730185, 3276222, 5460370, 8190555, 9282629, 16381110, 18565258, 27847887, 46413145, 55695774, 92826290, 139239435, 278478870]

約数ペア:

[(1, 278478870), (2, 139239435), (3, 92826290), (5, 55695774), (6, 46413145), (10, 27847887), (15, 18565258), (17, 16381110), (30, 9282629), (34, 8190555), (51, 5460370), (85, 3276222), (102, 2730185), (170, 1638111), (255, 1092074), (421, 661470), (510, 546037), (842, 330735), (1263, 220490), (1297, 214710), (2105, 132294), (2526, 110245), (2594, 107355), (3891, 71570), (4210, 66147), (6315, 44098), (6485, 42942), (7157, 38910), (7782, 35785), (12630, 22049), (12970, 21471), (14314, 19455)]