639308448

素因数分解:

$2^5\times 3^2\times {\mathrm{79}}^1\times {\mathrm{28099}}^1$

素因数の和:28194

約数の個数: 72

約数和(自身を含む): 1841112000

約数和(自身を除く): 1201803552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 79, 96, 144, 158, 237, 288, 316, 474, 632, 711, 948, 1264, 1422, 1896, 2528, 2844, 3792, 5688, 7584, 11376, 22752, 28099, 56198, 84297, 112396, 168594, 224792, 252891, 337188, 449584, 505782, 674376, 899168, 1011564, 1348752, 2023128, 2219821, 2697504, 4046256, 4439642, 6659463, 8092512, 8879284, 13318926, 17758568, 19978389, 26637852, 35517136, 39956778, 53275704, 71034272, 79913556, 106551408, 159827112, 213102816, 319654224, 639308448]

約数ペア:

[(1, 639308448), (2, 319654224), (3, 213102816), (4, 159827112), (6, 106551408), (8, 79913556), (9, 71034272), (12, 53275704), (16, 39956778), (18, 35517136), (24, 26637852), (32, 19978389), (36, 17758568), (48, 13318926), (72, 8879284), (79, 8092512), (96, 6659463), (144, 4439642), (158, 4046256), (237, 2697504), (288, 2219821), (316, 2023128), (474, 1348752), (632, 1011564), (711, 899168), (948, 674376), (1264, 505782), (1422, 449584), (1896, 337188), (2528, 252891), (2844, 224792), (3792, 168594), (5688, 112396), (7584, 84297), (11376, 56198), (22752, 28099)]