81639236

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{7457}}^1$

素因数の和:7508

約数の個数: 48

約数和(自身を含む): 180423936

約数和(自身を除く): 98784700

約数列:

[1, 2, 4, 7, 14, 17, 23, 28, 34, 46, 68, 92, 119, 161, 238, 322, 391, 476, 644, 782, 1564, 2737, 5474, 7457, 10948, 14914, 29828, 52199, 104398, 126769, 171511, 208796, 253538, 343022, 507076, 686044, 887383, 1200577, 1774766, 2401154, 2915687, 3549532, 4802308, 5831374, 11662748, 20409809, 40819618, 81639236]

約数ペア:

[(1, 81639236), (2, 40819618), (4, 20409809), (7, 11662748), (14, 5831374), (17, 4802308), (23, 3549532), (28, 2915687), (34, 2401154), (46, 1774766), (68, 1200577), (92, 887383), (119, 686044), (161, 507076), (238, 343022), (322, 253538), (391, 208796), (476, 171511), (644, 126769), (782, 104398), (1564, 52199), (2737, 29828), (5474, 14914), (7457, 10948)]