81997552

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{283}}^1$

素因数の和:510

約数の個数: 80

約数和(自身を含む): 197209600

約数和(自身を除く): 115212048

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 199, 208, 283, 364, 398, 566, 728, 796, 1132, 1393, 1456, 1592, 1981, 2264, 2587, 2786, 3184, 3679, 3962, 4528, 5174, 5572, 7358, 7924, 10348, 11144, 14716, 15848, 18109, 20696, 22288, 25753, 29432, 31696, 36218, 41392, 51506, 56317, 58864, 72436, 103012, 112634, 144872, 206024, 225268, 289744, 394219, 412048, 450536, 732121, 788438, 901072, 1464242, 1576876, 2928484, 3153752, 5124847, 5856968, 6307504, 10249694, 11713936, 20499388, 40998776, 81997552]

約数ペア:

[(1, 81997552), (2, 40998776), (4, 20499388), (7, 11713936), (8, 10249694), (13, 6307504), (14, 5856968), (16, 5124847), (26, 3153752), (28, 2928484), (52, 1576876), (56, 1464242), (91, 901072), (104, 788438), (112, 732121), (182, 450536), (199, 412048), (208, 394219), (283, 289744), (364, 225268), (398, 206024), (566, 144872), (728, 112634), (796, 103012), (1132, 72436), (1393, 58864), (1456, 56317), (1592, 51506), (1981, 41392), (2264, 36218), (2587, 31696), (2786, 29432), (3184, 25753), (3679, 22288), (3962, 20696), (4528, 18109), (5174, 15848), (5572, 14716), (7358, 11144), (7924, 10348)]