128661728

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{643}}^1$

素因数の和:716

約数の個数: 72

約数和(自身を含む): 282137688

約数和(自身を除く): 153475960

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 37, 52, 74, 104, 148, 169, 208, 296, 338, 416, 481, 592, 643, 676, 962, 1184, 1286, 1352, 1924, 2572, 2704, 3848, 5144, 5408, 6253, 7696, 8359, 10288, 12506, 15392, 16718, 20576, 23791, 25012, 33436, 47582, 50024, 66872, 95164, 100048, 108667, 133744, 190328, 200096, 217334, 267488, 309283, 380656, 434668, 618566, 761312, 869336, 1237132, 1738672, 2474264, 3477344, 4020679, 4948528, 8041358, 9897056, 16082716, 32165432, 64330864, 128661728]

約数ペア:

[(1, 128661728), (2, 64330864), (4, 32165432), (8, 16082716), (13, 9897056), (16, 8041358), (26, 4948528), (32, 4020679), (37, 3477344), (52, 2474264), (74, 1738672), (104, 1237132), (148, 869336), (169, 761312), (208, 618566), (296, 434668), (338, 380656), (416, 309283), (481, 267488), (592, 217334), (643, 200096), (676, 190328), (962, 133744), (1184, 108667), (1286, 100048), (1352, 95164), (1924, 66872), (2572, 50024), (2704, 47582), (3848, 33436), (5144, 25012), (5408, 23791), (6253, 20576), (7696, 16718), (8359, 15392), (10288, 12506)]