249480728

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{367}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 547584000

約数和(自身を除く): 298103272

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 199, 244, 367, 398, 427, 488, 734, 796, 854, 1393, 1468, 1592, 1708, 2569, 2786, 2936, 3416, 5138, 5572, 10276, 11144, 12139, 20552, 22387, 24278, 44774, 48556, 73033, 84973, 89548, 97112, 146066, 156709, 169946, 179096, 292132, 313418, 339892, 511231, 584264, 626836, 679784, 1022462, 1253672, 2044924, 4089848, 4455013, 8910026, 17820052, 31185091, 35640104, 62370182, 124740364, 249480728]

約数ペア:

[(1, 249480728), (2, 124740364), (4, 62370182), (7, 35640104), (8, 31185091), (14, 17820052), (28, 8910026), (56, 4455013), (61, 4089848), (122, 2044924), (199, 1253672), (244, 1022462), (367, 679784), (398, 626836), (427, 584264), (488, 511231), (734, 339892), (796, 313418), (854, 292132), (1393, 179096), (1468, 169946), (1592, 156709), (1708, 146066), (2569, 97112), (2786, 89548), (2936, 84973), (3416, 73033), (5138, 48556), (5572, 44774), (10276, 24278), (11144, 22387), (12139, 20552)]