220720656

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20807}}^1$

素因数の和:20848

約数の個数: 80

約数和(自身を含む): 650208384

約数和(自身を除く): 429487728

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 24, 26, 34, 39, 48, 51, 52, 68, 78, 102, 104, 136, 156, 204, 208, 221, 272, 312, 408, 442, 624, 663, 816, 884, 1326, 1768, 2652, 3536, 5304, 10608, 20807, 41614, 62421, 83228, 124842, 166456, 249684, 270491, 332912, 353719, 499368, 540982, 707438, 811473, 998736, 1061157, 1081964, 1414876, 1622946, 2122314, 2163928, 2829752, 3245892, 4244628, 4327856, 4598347, 5659504, 6491784, 8489256, 9196694, 12983568, 13795041, 16978512, 18393388, 27590082, 36786776, 55180164, 73573552, 110360328, 220720656]

約数ペア:

[(1, 220720656), (2, 110360328), (3, 73573552), (4, 55180164), (6, 36786776), (8, 27590082), (12, 18393388), (13, 16978512), (16, 13795041), (17, 12983568), (24, 9196694), (26, 8489256), (34, 6491784), (39, 5659504), (48, 4598347), (51, 4327856), (52, 4244628), (68, 3245892), (78, 2829752), (102, 2163928), (104, 2122314), (136, 1622946), (156, 1414876), (204, 1081964), (208, 1061157), (221, 998736), (272, 811473), (312, 707438), (408, 540982), (442, 499368), (624, 353719), (663, 332912), (816, 270491), (884, 249684), (1326, 166456), (1768, 124842), (2652, 83228), (3536, 62421), (5304, 41614), (10608, 20807)]