28680904

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{641}}^1$

素因数の和:718

約数の個数: 64

約数和(自身を含む): 66562560

約数和(自身を除く): 37881656

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 47, 56, 68, 94, 119, 136, 188, 238, 329, 376, 476, 641, 658, 799, 952, 1282, 1316, 1598, 2564, 2632, 3196, 4487, 5128, 5593, 6392, 8974, 10897, 11186, 17948, 21794, 22372, 30127, 35896, 43588, 44744, 60254, 76279, 87176, 120508, 152558, 210889, 241016, 305116, 421778, 512159, 610232, 843556, 1024318, 1687112, 2048636, 3585113, 4097272, 7170226, 14340452, 28680904]

約数ペア:

[(1, 28680904), (2, 14340452), (4, 7170226), (7, 4097272), (8, 3585113), (14, 2048636), (17, 1687112), (28, 1024318), (34, 843556), (47, 610232), (56, 512159), (68, 421778), (94, 305116), (119, 241016), (136, 210889), (188, 152558), (238, 120508), (329, 87176), (376, 76279), (476, 60254), (641, 44744), (658, 43588), (799, 35896), (952, 30127), (1282, 22372), (1316, 21794), (1598, 17948), (2564, 11186), (2632, 10897), (3196, 8974), (4487, 6392), (5128, 5593)]