128898256

素因数分解:

$2^4\times {\mathrm{23}}^2\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:308

約数の個数: 60

約数和(自身を含む): 265442212

約数和(自身を除く): 136543956

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 97, 157, 184, 194, 314, 368, 388, 529, 628, 776, 1058, 1256, 1552, 2116, 2231, 2512, 3611, 4232, 4462, 7222, 8464, 8924, 14444, 15229, 17848, 28888, 30458, 35696, 51313, 57776, 60916, 83053, 102626, 121832, 166106, 205252, 243664, 332212, 350267, 410504, 664424, 700534, 821008, 1328848, 1401068, 2802136, 5604272, 8056141, 16112282, 32224564, 64449128, 128898256]

約数ペア:

[(1, 128898256), (2, 64449128), (4, 32224564), (8, 16112282), (16, 8056141), (23, 5604272), (46, 2802136), (92, 1401068), (97, 1328848), (157, 821008), (184, 700534), (194, 664424), (314, 410504), (368, 350267), (388, 332212), (529, 243664), (628, 205252), (776, 166106), (1058, 121832), (1256, 102626), (1552, 83053), (2116, 60916), (2231, 57776), (2512, 51313), (3611, 35696), (4232, 30458), (4462, 28888), (7222, 17848), (8464, 15229), (8924, 14444)]