20408052

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{673}}^1$

素因数の和:725

約数の個数: 72

約数和(自身を含む): 57521856

約数和(自身を除く): 37113804

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 57, 76, 84, 114, 133, 228, 266, 361, 399, 532, 673, 722, 798, 1083, 1346, 1444, 1596, 2019, 2166, 2527, 2692, 4038, 4332, 4711, 5054, 7581, 8076, 9422, 10108, 12787, 14133, 15162, 18844, 25574, 28266, 30324, 38361, 51148, 56532, 76722, 89509, 153444, 179018, 242953, 268527, 358036, 485906, 537054, 728859, 971812, 1074108, 1457718, 1700671, 2915436, 3401342, 5102013, 6802684, 10204026, 20408052]

約数ペア:

[(1, 20408052), (2, 10204026), (3, 6802684), (4, 5102013), (6, 3401342), (7, 2915436), (12, 1700671), (14, 1457718), (19, 1074108), (21, 971812), (28, 728859), (38, 537054), (42, 485906), (57, 358036), (76, 268527), (84, 242953), (114, 179018), (133, 153444), (228, 89509), (266, 76722), (361, 56532), (399, 51148), (532, 38361), (673, 30324), (722, 28266), (798, 25574), (1083, 18844), (1346, 15162), (1444, 14133), (1596, 12787), (2019, 10108), (2166, 9422), (2527, 8076), (2692, 7581), (4038, 5054), (4332, 4711)]