71607440

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1823}}^1$

素因数の和:2327

約数の個数: 40

約数和(自身を含む): 166917888

約数和(自身を除く): 95310448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1823, 1964, 2455, 3646, 3928, 4910, 7292, 7856, 9115, 9820, 14584, 18230, 19640, 29168, 36460, 39280, 72920, 145840, 895093, 1790186, 3580372, 4475465, 7160744, 8950930, 14321488, 17901860, 35803720, 71607440]

約数ペア:

[(1, 71607440), (2, 35803720), (4, 17901860), (5, 14321488), (8, 8950930), (10, 7160744), (16, 4475465), (20, 3580372), (40, 1790186), (80, 895093), (491, 145840), (982, 72920), (1823, 39280), (1964, 36460), (2455, 29168), (3646, 19640), (3928, 18230), (4910, 14584), (7292, 9820), (7856, 9115)]