280185080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{313}}^1$

素因数の和:493

約数の個数: 128

約数和(自身を含む): 759628800

約数和(自身を除く): 479443720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 139, 140, 161, 184, 230, 278, 280, 313, 322, 460, 556, 626, 644, 695, 805, 920, 973, 1112, 1252, 1288, 1390, 1565, 1610, 1946, 2191, 2504, 2780, 3130, 3197, 3220, 3892, 4382, 4865, 5560, 6260, 6394, 6440, 7199, 7784, 8764, 9730, 10955, 12520, 12788, 14398, 15985, 17528, 19460, 21910, 22379, 25576, 28796, 31970, 35995, 38920, 43507, 43820, 44758, 50393, 57592, 63940, 71990, 87014, 87640, 89516, 100786, 111895, 127880, 143980, 174028, 179032, 201572, 217535, 223790, 251965, 287960, 304549, 348056, 403144, 435070, 447580, 503930, 609098, 870140, 895160, 1000661, 1007860, 1218196, 1522745, 1740280, 2001322, 2015720, 2436392, 3045490, 4002644, 5003305, 6090980, 7004627, 8005288, 10006610, 12181960, 14009254, 20013220, 28018508, 35023135, 40026440, 56037016, 70046270, 140092540, 280185080]

約数ペア:

[(1, 280185080), (2, 140092540), (4, 70046270), (5, 56037016), (7, 40026440), (8, 35023135), (10, 28018508), (14, 20013220), (20, 14009254), (23, 12181960), (28, 10006610), (35, 8005288), (40, 7004627), (46, 6090980), (56, 5003305), (70, 4002644), (92, 3045490), (115, 2436392), (139, 2015720), (140, 2001322), (161, 1740280), (184, 1522745), (230, 1218196), (278, 1007860), (280, 1000661), (313, 895160), (322, 870140), (460, 609098), (556, 503930), (626, 447580), (644, 435070), (695, 403144), (805, 348056), (920, 304549), (973, 287960), (1112, 251965), (1252, 223790), (1288, 217535), (1390, 201572), (1565, 179032), (1610, 174028), (1946, 143980), (2191, 127880), (2504, 111895), (2780, 100786), (3130, 89516), (3197, 87640), (3220, 87014), (3892, 71990), (4382, 63940), (4865, 57592), (5560, 50393), (6260, 44758), (6394, 43820), (6440, 43507), (7199, 38920), (7784, 35995), (8764, 31970), (9730, 28796), (10955, 25576), (12520, 22379), (12788, 21910), (14398, 19460), (15985, 17528)]