77985280

素因数分解:

$2^9\times 5^1\times {\mathrm{41}}^1\times {\mathrm{743}}^1$

素因数の和:807

約数の個数: 80

約数和(自身を含む): 191800224

約数和(自身を除く): 113814944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 512, 640, 656, 743, 820, 1280, 1312, 1486, 1640, 2560, 2624, 2972, 3280, 3715, 5248, 5944, 6560, 7430, 10496, 11888, 13120, 14860, 20992, 23776, 26240, 29720, 30463, 47552, 52480, 59440, 60926, 95104, 104960, 118880, 121852, 152315, 190208, 237760, 243704, 304630, 380416, 475520, 487408, 609260, 951040, 974816, 1218520, 1902080, 1949632, 2437040, 3899264, 4874080, 7798528, 9748160, 15597056, 19496320, 38992640, 77985280]

約数ペア:

[(1, 77985280), (2, 38992640), (4, 19496320), (5, 15597056), (8, 9748160), (10, 7798528), (16, 4874080), (20, 3899264), (32, 2437040), (40, 1949632), (41, 1902080), (64, 1218520), (80, 974816), (82, 951040), (128, 609260), (160, 487408), (164, 475520), (205, 380416), (256, 304630), (320, 243704), (328, 237760), (410, 190208), (512, 152315), (640, 121852), (656, 118880), (743, 104960), (820, 95104), (1280, 60926), (1312, 59440), (1486, 52480), (1640, 47552), (2560, 30463), (2624, 29720), (2972, 26240), (3280, 23776), (3715, 20992), (5248, 14860), (5944, 13120), (6560, 11888), (7430, 10496)]