20210320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19433}}^1$

素因数の和:19459

約数の個数: 40

約数和(自身を含む): 50606136

約数和(自身を除く): 30395816

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 19433, 38866, 77732, 97165, 155464, 194330, 252629, 310928, 388660, 505258, 777320, 1010516, 1263145, 1554640, 2021032, 2526290, 4042064, 5052580, 10105160, 20210320]

約数ペア:

[(1, 20210320), (2, 10105160), (4, 5052580), (5, 4042064), (8, 2526290), (10, 2021032), (13, 1554640), (16, 1263145), (20, 1010516), (26, 777320), (40, 505258), (52, 388660), (65, 310928), (80, 252629), (104, 194330), (130, 155464), (208, 97165), (260, 77732), (520, 38866), (1040, 19433)]