65715440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{491}}^1$

素因数の和:750

約数の個数: 80

約数和(自身を含む): 175703040

約数和(自身を除く): 109987600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 239, 280, 478, 491, 560, 956, 982, 1195, 1673, 1912, 1964, 2390, 2455, 3346, 3437, 3824, 3928, 4780, 4910, 6692, 6874, 7856, 8365, 9560, 9820, 13384, 13748, 16730, 17185, 19120, 19640, 26768, 27496, 33460, 34370, 39280, 54992, 66920, 68740, 117349, 133840, 137480, 234698, 274960, 469396, 586745, 821443, 938792, 1173490, 1642886, 1877584, 2346980, 3285772, 4107215, 4693960, 6571544, 8214430, 9387920, 13143088, 16428860, 32857720, 65715440]

約数ペア:

[(1, 65715440), (2, 32857720), (4, 16428860), (5, 13143088), (7, 9387920), (8, 8214430), (10, 6571544), (14, 4693960), (16, 4107215), (20, 3285772), (28, 2346980), (35, 1877584), (40, 1642886), (56, 1173490), (70, 938792), (80, 821443), (112, 586745), (140, 469396), (239, 274960), (280, 234698), (478, 137480), (491, 133840), (560, 117349), (956, 68740), (982, 66920), (1195, 54992), (1673, 39280), (1912, 34370), (1964, 33460), (2390, 27496), (2455, 26768), (3346, 19640), (3437, 19120), (3824, 17185), (3928, 16730), (4780, 13748), (4910, 13384), (6692, 9820), (6874, 9560), (7856, 8365)]