8010020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 17962560

約数和(自身を除く): 9952540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 107, 190, 197, 214, 380, 394, 428, 535, 788, 985, 1070, 1970, 2033, 2140, 3743, 3940, 4066, 7486, 8132, 10165, 14972, 18715, 20330, 21079, 37430, 40660, 42158, 74860, 84316, 105395, 210790, 400501, 421580, 801002, 1602004, 2002505, 4005010, 8010020]

約数ペア:

[(1, 8010020), (2, 4005010), (4, 2002505), (5, 1602004), (10, 801002), (19, 421580), (20, 400501), (38, 210790), (76, 105395), (95, 84316), (107, 74860), (190, 42158), (197, 40660), (214, 37430), (380, 21079), (394, 20330), (428, 18715), (535, 14972), (788, 10165), (985, 8132), (1070, 7486), (1970, 4066), (2033, 3940), (2140, 3743)]