20744048

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:250

約数の個数: 80

約数和(自身を含む): 47392800

約数和(自身を除く): 26648752

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 29, 38, 52, 58, 76, 104, 116, 152, 181, 208, 232, 247, 304, 362, 377, 464, 494, 551, 724, 754, 988, 1102, 1448, 1508, 1976, 2204, 2353, 2896, 3016, 3439, 3952, 4408, 4706, 5249, 6032, 6878, 7163, 8816, 9412, 10498, 13756, 14326, 18824, 20996, 27512, 28652, 37648, 41992, 44707, 55024, 57304, 68237, 83984, 89414, 99731, 114608, 136474, 178828, 199462, 272948, 357656, 398924, 545896, 715312, 797848, 1091792, 1296503, 1595696, 2593006, 5186012, 10372024, 20744048]

約数ペア:

[(1, 20744048), (2, 10372024), (4, 5186012), (8, 2593006), (13, 1595696), (16, 1296503), (19, 1091792), (26, 797848), (29, 715312), (38, 545896), (52, 398924), (58, 357656), (76, 272948), (104, 199462), (116, 178828), (152, 136474), (181, 114608), (208, 99731), (232, 89414), (247, 83984), (304, 68237), (362, 57304), (377, 55024), (464, 44707), (494, 41992), (551, 37648), (724, 28652), (754, 27512), (988, 20996), (1102, 18824), (1448, 14326), (1508, 13756), (1976, 10498), (2204, 9412), (2353, 8816), (2896, 7163), (3016, 6878), (3439, 6032), (3952, 5249), (4408, 4706)]