64274420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{19961}}^1$

素因数の和:20000

約数の個数: 48

約数和(自身を含む): 160973568

約数和(自身を除く): 96699148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 19961, 39922, 79844, 99805, 139727, 199610, 279454, 399220, 459103, 558908, 698635, 918206, 1397270, 1836412, 2295515, 2794540, 3213721, 4591030, 6427442, 9182060, 12854884, 16068605, 32137210, 64274420]

約数ペア:

[(1, 64274420), (2, 32137210), (4, 16068605), (5, 12854884), (7, 9182060), (10, 6427442), (14, 4591030), (20, 3213721), (23, 2794540), (28, 2295515), (35, 1836412), (46, 1397270), (70, 918206), (92, 698635), (115, 558908), (140, 459103), (161, 399220), (230, 279454), (322, 199610), (460, 139727), (644, 99805), (805, 79844), (1610, 39922), (3220, 19961)]