31781412

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1151}}^1$

素因数の和:1233

約数の個数: 72

約数和(自身を含む): 88058880

約数和(自身を除く): 56277468

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 59, 78, 117, 118, 156, 177, 234, 236, 354, 468, 531, 708, 767, 1062, 1151, 1534, 2124, 2301, 2302, 3068, 3453, 4602, 4604, 6903, 6906, 9204, 10359, 13806, 13812, 14963, 20718, 27612, 29926, 41436, 44889, 59852, 67909, 89778, 134667, 135818, 179556, 203727, 269334, 271636, 407454, 538668, 611181, 814908, 882817, 1222362, 1765634, 2444724, 2648451, 3531268, 5296902, 7945353, 10593804, 15890706, 31781412]

約数ペア:

[(1, 31781412), (2, 15890706), (3, 10593804), (4, 7945353), (6, 5296902), (9, 3531268), (12, 2648451), (13, 2444724), (18, 1765634), (26, 1222362), (36, 882817), (39, 814908), (52, 611181), (59, 538668), (78, 407454), (117, 271636), (118, 269334), (156, 203727), (177, 179556), (234, 135818), (236, 134667), (354, 89778), (468, 67909), (531, 59852), (708, 44889), (767, 41436), (1062, 29926), (1151, 27612), (1534, 20718), (2124, 14963), (2301, 13812), (2302, 13806), (3068, 10359), (3453, 9204), (4602, 6906), (4604, 6903)]