19910256

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:270

約数の個数: 80

約数和(自身を含む): 53829888

約数和(自身を除く): 33919632

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 67, 82, 123, 134, 151, 164, 201, 246, 268, 302, 328, 402, 453, 492, 536, 604, 656, 804, 906, 984, 1072, 1208, 1608, 1812, 1968, 2416, 2747, 3216, 3624, 5494, 6191, 7248, 8241, 10117, 10988, 12382, 16482, 18573, 20234, 21976, 24764, 30351, 32964, 37146, 40468, 43952, 49528, 60702, 65928, 74292, 80936, 99056, 121404, 131856, 148584, 161872, 242808, 297168, 414797, 485616, 829594, 1244391, 1659188, 2488782, 3318376, 4977564, 6636752, 9955128, 19910256]

約数ペア:

[(1, 19910256), (2, 9955128), (3, 6636752), (4, 4977564), (6, 3318376), (8, 2488782), (12, 1659188), (16, 1244391), (24, 829594), (41, 485616), (48, 414797), (67, 297168), (82, 242808), (123, 161872), (134, 148584), (151, 131856), (164, 121404), (201, 99056), (246, 80936), (268, 74292), (302, 65928), (328, 60702), (402, 49528), (453, 43952), (492, 40468), (536, 37146), (604, 32964), (656, 30351), (804, 24764), (906, 21976), (984, 20234), (1072, 18573), (1208, 16482), (1608, 12382), (1812, 10988), (1968, 10117), (2416, 8241), (2747, 7248), (3216, 6191), (3624, 5494)]