161287984

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{449}}^1$

素因数の和:638

約数の個数: 80

約数和(自身を含む): 370288800

約数和(自身を除く): 209000816

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 157, 176, 208, 286, 314, 449, 572, 628, 898, 1144, 1256, 1727, 1796, 2041, 2288, 2512, 3454, 3592, 4082, 4939, 5837, 6908, 7184, 8164, 9878, 11674, 13816, 16328, 19756, 22451, 23348, 27632, 32656, 39512, 44902, 46696, 64207, 70493, 79024, 89804, 93392, 128414, 140986, 179608, 256828, 281972, 359216, 513656, 563944, 775423, 916409, 1027312, 1127888, 1550846, 1832818, 3101692, 3665636, 6203384, 7331272, 10080499, 12406768, 14662544, 20160998, 40321996, 80643992, 161287984]

約数ペア:

[(1, 161287984), (2, 80643992), (4, 40321996), (8, 20160998), (11, 14662544), (13, 12406768), (16, 10080499), (22, 7331272), (26, 6203384), (44, 3665636), (52, 3101692), (88, 1832818), (104, 1550846), (143, 1127888), (157, 1027312), (176, 916409), (208, 775423), (286, 563944), (314, 513656), (449, 359216), (572, 281972), (628, 256828), (898, 179608), (1144, 140986), (1256, 128414), (1727, 93392), (1796, 89804), (2041, 79024), (2288, 70493), (2512, 64207), (3454, 46696), (3592, 44902), (4082, 39512), (4939, 32656), (5837, 27632), (6908, 23348), (7184, 22451), (8164, 19756), (9878, 16328), (11674, 13816)]