19958902912

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{433}}^1\times {\mathrm{27701}}^1$

素因数の和:28161

約数の個数: 64

約数和(自身を含む): 42920924760

約数和(自身を除く): 22962021848

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 433, 832, 866, 1664, 1732, 3464, 5629, 6928, 11258, 13856, 22516, 27701, 27712, 45032, 55402, 55424, 90064, 110804, 180128, 221608, 360113, 360256, 443216, 720226, 720512, 886432, 1440452, 1772864, 2880904, 3545728, 5761808, 11523616, 11994533, 23047232, 23989066, 46094464, 47978132, 95956264, 155928929, 191912528, 311857858, 383825056, 623715716, 767650112, 1247431432, 1535300224, 2494862864, 4989725728, 9979451456, 19958902912]

約数ペア:

[(1, 19958902912), (2, 9979451456), (4, 4989725728), (8, 2494862864), (13, 1535300224), (16, 1247431432), (26, 767650112), (32, 623715716), (52, 383825056), (64, 311857858), (104, 191912528), (128, 155928929), (208, 95956264), (416, 47978132), (433, 46094464), (832, 23989066), (866, 23047232), (1664, 11994533), (1732, 11523616), (3464, 5761808), (5629, 3545728), (6928, 2880904), (11258, 1772864), (13856, 1440452), (22516, 886432), (27701, 720512), (27712, 720226), (45032, 443216), (55402, 360256), (55424, 360113), (90064, 221608), (110804, 180128)]