90705280

素因数分解:

$2^7\times 5^1\times {\mathrm{239}}^1\times {\mathrm{593}}^1$

素因数の和:851

約数の個数: 64

約数和(自身を含む): 218116800

約数和(自身を除く): 127411520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 239, 320, 478, 593, 640, 956, 1186, 1195, 1912, 2372, 2390, 2965, 3824, 4744, 4780, 5930, 7648, 9488, 9560, 11860, 15296, 18976, 19120, 23720, 30592, 37952, 38240, 47440, 75904, 76480, 94880, 141727, 152960, 189760, 283454, 379520, 566908, 708635, 1133816, 1417270, 2267632, 2834540, 4535264, 5669080, 9070528, 11338160, 18141056, 22676320, 45352640, 90705280]

約数ペア:

[(1, 90705280), (2, 45352640), (4, 22676320), (5, 18141056), (8, 11338160), (10, 9070528), (16, 5669080), (20, 4535264), (32, 2834540), (40, 2267632), (64, 1417270), (80, 1133816), (128, 708635), (160, 566908), (239, 379520), (320, 283454), (478, 189760), (593, 152960), (640, 141727), (956, 94880), (1186, 76480), (1195, 75904), (1912, 47440), (2372, 38240), (2390, 37952), (2965, 30592), (3824, 23720), (4744, 19120), (4780, 18976), (5930, 15296), (7648, 11860), (9488, 9560)]