28972560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1979}}^1$

素因数の和:2056

約数の個数: 80

約数和(自身を含む): 91333440

約数和(自身を除く): 62360880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 61, 80, 120, 122, 183, 240, 244, 305, 366, 488, 610, 732, 915, 976, 1220, 1464, 1830, 1979, 2440, 2928, 3660, 3958, 4880, 5937, 7320, 7916, 9895, 11874, 14640, 15832, 19790, 23748, 29685, 31664, 39580, 47496, 59370, 79160, 94992, 118740, 120719, 158320, 237480, 241438, 362157, 474960, 482876, 603595, 724314, 965752, 1207190, 1448628, 1810785, 1931504, 2414380, 2897256, 3621570, 4828760, 5794512, 7243140, 9657520, 14486280, 28972560]

約数ペア:

[(1, 28972560), (2, 14486280), (3, 9657520), (4, 7243140), (5, 5794512), (6, 4828760), (8, 3621570), (10, 2897256), (12, 2414380), (15, 1931504), (16, 1810785), (20, 1448628), (24, 1207190), (30, 965752), (40, 724314), (48, 603595), (60, 482876), (61, 474960), (80, 362157), (120, 241438), (122, 237480), (183, 158320), (240, 120719), (244, 118740), (305, 94992), (366, 79160), (488, 59370), (610, 47496), (732, 39580), (915, 31664), (976, 29685), (1220, 23748), (1464, 19790), (1830, 15832), (1979, 14640), (2440, 11874), (2928, 9895), (3660, 7916), (3958, 7320), (4880, 5937)]