1987130467660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26849}}^1\times {\mathrm{284659}}^1$

素因数の和:311530

約数の個数: 48

約数和(自身を含む): 4494155148000

約数和(自身を除く): 2507024680340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 26849, 53698, 107396, 134245, 268490, 284659, 349037, 536980, 569318, 698074, 1138636, 1396148, 1423295, 1745185, 2846590, 3490370, 3700567, 5693180, 6980740, 7401134, 14802268, 18502835, 37005670, 74011340, 7642809491, 15285618982, 30571237964, 38214047455, 76428094910, 99356523383, 152856189820, 198713046766, 397426093532, 496782616915, 993565233830, 1987130467660]

約数ペア:

[(1, 1987130467660), (2, 993565233830), (4, 496782616915), (5, 397426093532), (10, 198713046766), (13, 152856189820), (20, 99356523383), (26, 76428094910), (52, 38214047455), (65, 30571237964), (130, 15285618982), (260, 7642809491), (26849, 74011340), (53698, 37005670), (107396, 18502835), (134245, 14802268), (268490, 7401134), (284659, 6980740), (349037, 5693180), (536980, 3700567), (569318, 3490370), (698074, 2846590), (1138636, 1745185), (1396148, 1423295)]