81323216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:324

約数の個数: 80

約数和(自身を含む): 179988480

約数和(自身を除く): 98665264

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 46, 52, 89, 92, 104, 178, 184, 191, 208, 299, 356, 368, 382, 598, 712, 764, 1157, 1196, 1424, 1528, 2047, 2314, 2392, 2483, 3056, 4094, 4393, 4628, 4784, 4966, 8188, 8786, 9256, 9932, 16376, 16999, 17572, 18512, 19864, 26611, 32752, 33998, 35144, 39728, 53222, 57109, 67996, 70288, 106444, 114218, 135992, 212888, 220987, 228436, 271984, 390977, 425776, 441974, 456872, 781954, 883948, 913744, 1563908, 1767896, 3127816, 3535792, 5082701, 6255632, 10165402, 20330804, 40661608, 81323216]

約数ペア:

[(1, 81323216), (2, 40661608), (4, 20330804), (8, 10165402), (13, 6255632), (16, 5082701), (23, 3535792), (26, 3127816), (46, 1767896), (52, 1563908), (89, 913744), (92, 883948), (104, 781954), (178, 456872), (184, 441974), (191, 425776), (208, 390977), (299, 271984), (356, 228436), (368, 220987), (382, 212888), (598, 135992), (712, 114218), (764, 106444), (1157, 70288), (1196, 67996), (1424, 57109), (1528, 53222), (2047, 39728), (2314, 35144), (2392, 33998), (2483, 32752), (3056, 26611), (4094, 19864), (4393, 18512), (4628, 17572), (4784, 16999), (4966, 16376), (8188, 9932), (8786, 9256)]