19455488

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:147

約数の個数: 80

約数和(自身を含む): 43538880

約数和(自身を除く): 24083392

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 37, 52, 64, 74, 79, 104, 128, 148, 158, 208, 256, 296, 316, 416, 481, 512, 592, 632, 832, 962, 1027, 1184, 1264, 1664, 1924, 2054, 2368, 2528, 2923, 3328, 3848, 4108, 4736, 5056, 5846, 6656, 7696, 8216, 9472, 10112, 11692, 15392, 16432, 18944, 20224, 23384, 30784, 32864, 37999, 40448, 46768, 61568, 65728, 75998, 93536, 123136, 131456, 151996, 187072, 246272, 262912, 303992, 374144, 525824, 607984, 748288, 1215968, 1496576, 2431936, 4863872, 9727744, 19455488]

約数ペア:

[(1, 19455488), (2, 9727744), (4, 4863872), (8, 2431936), (13, 1496576), (16, 1215968), (26, 748288), (32, 607984), (37, 525824), (52, 374144), (64, 303992), (74, 262912), (79, 246272), (104, 187072), (128, 151996), (148, 131456), (158, 123136), (208, 93536), (256, 75998), (296, 65728), (316, 61568), (416, 46768), (481, 40448), (512, 37999), (592, 32864), (632, 30784), (832, 23384), (962, 20224), (1027, 18944), (1184, 16432), (1264, 15392), (1664, 11692), (1924, 10112), (2054, 9472), (2368, 8216), (2528, 7696), (2923, 6656), (3328, 5846), (3848, 5056), (4108, 4736)]