20430320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13441}}^1$

素因数の和:13473

約数の個数: 40

約数和(自身を含む): 50004240

約数和(自身を除く): 29573920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13441, 26882, 53764, 67205, 107528, 134410, 215056, 255379, 268820, 510758, 537640, 1021516, 1075280, 1276895, 2043032, 2553790, 4086064, 5107580, 10215160, 20430320]

約数ペア:

[(1, 20430320), (2, 10215160), (4, 5107580), (5, 4086064), (8, 2553790), (10, 2043032), (16, 1276895), (19, 1075280), (20, 1021516), (38, 537640), (40, 510758), (76, 268820), (80, 255379), (95, 215056), (152, 134410), (190, 107528), (304, 67205), (380, 53764), (760, 26882), (1520, 13441)]