321960288

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{257981}}^1$

素因数の和:258007

約数の個数: 48

約数和(自身を含む): 910160496

約数和(自身を除く): 588200208

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 208, 312, 416, 624, 1248, 257981, 515962, 773943, 1031924, 1547886, 2063848, 3095772, 3353753, 4127696, 6191544, 6707506, 8255392, 10061259, 12383088, 13415012, 20122518, 24766176, 26830024, 40245036, 53660048, 80490072, 107320096, 160980144, 321960288]

約数ペア:

[(1, 321960288), (2, 160980144), (3, 107320096), (4, 80490072), (6, 53660048), (8, 40245036), (12, 26830024), (13, 24766176), (16, 20122518), (24, 13415012), (26, 12383088), (32, 10061259), (39, 8255392), (48, 6707506), (52, 6191544), (78, 4127696), (96, 3353753), (104, 3095772), (156, 2063848), (208, 1547886), (312, 1031924), (416, 773943), (624, 515962), (1248, 257981)]