28239680

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{1801}}^1$

素因数の和:1832

約数の個数: 84

約数和(自身を含む): 78268068

約数和(自身を除く): 50028388

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1568, 1801, 1960, 2240, 3136, 3602, 3920, 7204, 7840, 9005, 12607, 14408, 15680, 18010, 25214, 28816, 36020, 50428, 57632, 63035, 72040, 88249, 100856, 115264, 126070, 144080, 176498, 201712, 252140, 288160, 352996, 403424, 441245, 504280, 576320, 705992, 806848, 882490, 1008560, 1411984, 1764980, 2017120, 2823968, 3529960, 4034240, 5647936, 7059920, 14119840, 28239680]

約数ペア:

[(1, 28239680), (2, 14119840), (4, 7059920), (5, 5647936), (7, 4034240), (8, 3529960), (10, 2823968), (14, 2017120), (16, 1764980), (20, 1411984), (28, 1008560), (32, 882490), (35, 806848), (40, 705992), (49, 576320), (56, 504280), (64, 441245), (70, 403424), (80, 352996), (98, 288160), (112, 252140), (140, 201712), (160, 176498), (196, 144080), (224, 126070), (245, 115264), (280, 100856), (320, 88249), (392, 72040), (448, 63035), (490, 57632), (560, 50428), (784, 36020), (980, 28816), (1120, 25214), (1568, 18010), (1801, 15680), (1960, 14408), (2240, 12607), (3136, 9005), (3602, 7840), (3920, 7204)]