278399212

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{4421}}^1$

素因数の和:4618

約数の個数: 48

約数和(自身を含む): 603231552

約数和(自身を除く): 324832340

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 173, 182, 346, 364, 692, 1211, 2249, 2422, 4421, 4498, 4844, 8842, 8996, 15743, 17684, 30947, 31486, 57473, 61894, 62972, 114946, 123788, 229892, 402311, 764833, 804622, 1529666, 1609244, 3059332, 5353831, 9942829, 10707662, 19885658, 21415324, 39771316, 69599803, 139199606, 278399212]

約数ペア:

[(1, 278399212), (2, 139199606), (4, 69599803), (7, 39771316), (13, 21415324), (14, 19885658), (26, 10707662), (28, 9942829), (52, 5353831), (91, 3059332), (173, 1609244), (182, 1529666), (346, 804622), (364, 764833), (692, 402311), (1211, 229892), (2249, 123788), (2422, 114946), (4421, 62972), (4498, 61894), (4844, 57473), (8842, 31486), (8996, 30947), (15743, 17684)]