127535984

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{661}}^1$

素因数の和:1089

約数の個数: 40

約数和(自身を含む): 256114560

約数和(自身を除く): 128578576

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 389, 496, 661, 778, 1322, 1556, 2644, 3112, 5288, 6224, 10576, 12059, 20491, 24118, 40982, 48236, 81964, 96472, 163928, 192944, 257129, 327856, 514258, 1028516, 2057032, 4114064, 7970999, 15941998, 31883996, 63767992, 127535984]

約数ペア:

[(1, 127535984), (2, 63767992), (4, 31883996), (8, 15941998), (16, 7970999), (31, 4114064), (62, 2057032), (124, 1028516), (248, 514258), (389, 327856), (496, 257129), (661, 192944), (778, 163928), (1322, 96472), (1556, 81964), (2644, 48236), (3112, 40982), (5288, 24118), (6224, 20491), (10576, 12059)]