87784684

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:191

約数の個数: 72

約数和(自身を含む): 177085440

約数和(自身を除く): 89300756

約数列:

[1, 2, 4, 13, 26, 31, 52, 59, 62, 71, 118, 124, 142, 169, 236, 284, 338, 403, 676, 767, 806, 923, 1534, 1612, 1829, 1846, 2201, 3068, 3658, 3692, 4189, 4402, 5239, 7316, 8378, 8804, 9971, 10478, 11999, 16756, 19942, 20956, 23777, 23998, 28613, 39884, 47554, 47996, 54457, 57226, 95108, 108914, 114452, 129859, 217828, 259718, 309101, 371969, 519436, 618202, 707941, 743938, 1236404, 1415882, 1487876, 1688167, 2831764, 3376334, 6752668, 21946171, 43892342, 87784684]

約数ペア:

[(1, 87784684), (2, 43892342), (4, 21946171), (13, 6752668), (26, 3376334), (31, 2831764), (52, 1688167), (59, 1487876), (62, 1415882), (71, 1236404), (118, 743938), (124, 707941), (142, 618202), (169, 519436), (236, 371969), (284, 309101), (338, 259718), (403, 217828), (676, 129859), (767, 114452), (806, 108914), (923, 95108), (1534, 57226), (1612, 54457), (1829, 47996), (1846, 47554), (2201, 39884), (3068, 28613), (3658, 23998), (3692, 23777), (4189, 20956), (4402, 19942), (5239, 16756), (7316, 11999), (8378, 10478), (8804, 9971)]