201920128

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{641}}^1$

素因数の和:785

約数の個数: 64

約数和(自身を含む): 424336320

約数和(自身を除く): 222416192

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 107, 128, 184, 214, 368, 428, 641, 736, 856, 1282, 1472, 1712, 2461, 2564, 2944, 3424, 4922, 5128, 6848, 9844, 10256, 13696, 14743, 19688, 20512, 29486, 39376, 41024, 58972, 68587, 78752, 82048, 117944, 137174, 157504, 235888, 274348, 315008, 471776, 548696, 943552, 1097392, 1577501, 1887104, 2194784, 3155002, 4389568, 6310004, 8779136, 12620008, 25240016, 50480032, 100960064, 201920128]

約数ペア:

[(1, 201920128), (2, 100960064), (4, 50480032), (8, 25240016), (16, 12620008), (23, 8779136), (32, 6310004), (46, 4389568), (64, 3155002), (92, 2194784), (107, 1887104), (128, 1577501), (184, 1097392), (214, 943552), (368, 548696), (428, 471776), (641, 315008), (736, 274348), (856, 235888), (1282, 157504), (1472, 137174), (1712, 117944), (2461, 82048), (2564, 78752), (2944, 68587), (3424, 58972), (4922, 41024), (5128, 39376), (6848, 29486), (9844, 20512), (10256, 19688), (13696, 14743)]