72604160

素因数分解:

$2^9\times 5^1\times {\mathrm{79}}^1\times {\mathrm{359}}^1$

素因数の和:461

約数の個数: 80

約数和(自身を含む): 176774400

約数和(自身を除く): 104170240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 256, 316, 320, 359, 395, 512, 632, 640, 718, 790, 1264, 1280, 1436, 1580, 1795, 2528, 2560, 2872, 3160, 3590, 5056, 5744, 6320, 7180, 10112, 11488, 12640, 14360, 20224, 22976, 25280, 28361, 28720, 40448, 45952, 50560, 56722, 57440, 91904, 101120, 113444, 114880, 141805, 183808, 202240, 226888, 229760, 283610, 453776, 459520, 567220, 907552, 919040, 1134440, 1815104, 2268880, 3630208, 4537760, 7260416, 9075520, 14520832, 18151040, 36302080, 72604160]

約数ペア:

[(1, 72604160), (2, 36302080), (4, 18151040), (5, 14520832), (8, 9075520), (10, 7260416), (16, 4537760), (20, 3630208), (32, 2268880), (40, 1815104), (64, 1134440), (79, 919040), (80, 907552), (128, 567220), (158, 459520), (160, 453776), (256, 283610), (316, 229760), (320, 226888), (359, 202240), (395, 183808), (512, 141805), (632, 114880), (640, 113444), (718, 101120), (790, 91904), (1264, 57440), (1280, 56722), (1436, 50560), (1580, 45952), (1795, 40448), (2528, 28720), (2560, 28361), (2872, 25280), (3160, 22976), (3590, 20224), (5056, 14360), (5744, 12640), (6320, 11488), (7180, 10112)]