201788120

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{63857}}^1$

素因数の和:63947

約数の個数: 32

約数和(自身を含む): 459777600

約数和(自身を除く): 257989480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 63857, 127714, 255428, 319285, 510856, 638570, 1277140, 2554280, 5044703, 10089406, 20178812, 25223515, 40357624, 50447030, 100894060, 201788120]

約数ペア:

[(1, 201788120), (2, 100894060), (4, 50447030), (5, 40357624), (8, 25223515), (10, 20178812), (20, 10089406), (40, 5044703), (79, 2554280), (158, 1277140), (316, 638570), (395, 510856), (632, 319285), (790, 255428), (1580, 127714), (3160, 63857)]