131086720

素因数分解:

$2^7\times 5^1\times {\mathrm{239}}^1\times {\mathrm{857}}^1$

素因数の和:1115

約数の個数: 64

約数和(自身を含む): 315057600

約数和(自身を除く): 183970880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 239, 320, 478, 640, 857, 956, 1195, 1714, 1912, 2390, 3428, 3824, 4285, 4780, 6856, 7648, 8570, 9560, 13712, 15296, 17140, 19120, 27424, 30592, 34280, 38240, 54848, 68560, 76480, 109696, 137120, 152960, 204823, 274240, 409646, 548480, 819292, 1024115, 1638584, 2048230, 3277168, 4096460, 6554336, 8192920, 13108672, 16385840, 26217344, 32771680, 65543360, 131086720]

約数ペア:

[(1, 131086720), (2, 65543360), (4, 32771680), (5, 26217344), (8, 16385840), (10, 13108672), (16, 8192920), (20, 6554336), (32, 4096460), (40, 3277168), (64, 2048230), (80, 1638584), (128, 1024115), (160, 819292), (239, 548480), (320, 409646), (478, 274240), (640, 204823), (857, 152960), (956, 137120), (1195, 109696), (1714, 76480), (1912, 68560), (2390, 54848), (3428, 38240), (3824, 34280), (4285, 30592), (4780, 27424), (6856, 19120), (7648, 17140), (8570, 15296), (9560, 13712)]