81616490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{911}}^1$

素因数の和:983

約数の個数: 48

約数和(自身を含む): 161270784

約数和(自身を除く): 79654294

約数列:

[1, 2, 5, 10, 17, 31, 34, 62, 85, 155, 170, 289, 310, 527, 578, 911, 1054, 1445, 1822, 2635, 2890, 4555, 5270, 8959, 9110, 15487, 17918, 28241, 30974, 44795, 56482, 77435, 89590, 141205, 154870, 263279, 282410, 480097, 526558, 960194, 1316395, 2400485, 2632790, 4800970, 8161649, 16323298, 40808245, 81616490]

約数ペア:

[(1, 81616490), (2, 40808245), (5, 16323298), (10, 8161649), (17, 4800970), (31, 2632790), (34, 2400485), (62, 1316395), (85, 960194), (155, 526558), (170, 480097), (289, 282410), (310, 263279), (527, 154870), (578, 141205), (911, 89590), (1054, 77435), (1445, 56482), (1822, 44795), (2635, 30974), (2890, 28241), (4555, 17918), (5270, 15487), (8959, 9110)]