843281540

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{271}}^1\times {\mathrm{991}}^1$

素因数の和:1428

約数の個数: 48

約数和(自身を含む): 1790552064

約数和(自身を除く): 947270524

約数列:

[1, 2, 4, 5, 10, 20, 157, 271, 314, 542, 628, 785, 991, 1084, 1355, 1570, 1982, 2710, 3140, 3964, 4955, 5420, 9910, 19820, 42547, 85094, 155587, 170188, 212735, 268561, 311174, 425470, 537122, 622348, 777935, 850940, 1074244, 1342805, 1555870, 2685610, 3111740, 5371220, 42164077, 84328154, 168656308, 210820385, 421640770, 843281540]

約数ペア:

[(1, 843281540), (2, 421640770), (4, 210820385), (5, 168656308), (10, 84328154), (20, 42164077), (157, 5371220), (271, 3111740), (314, 2685610), (542, 1555870), (628, 1342805), (785, 1074244), (991, 850940), (1084, 777935), (1355, 622348), (1570, 537122), (1982, 425470), (2710, 311174), (3140, 268561), (3964, 212735), (4955, 170188), (5420, 155587), (9910, 85094), (19820, 42547)]