20196340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{311}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 45287424

約数和(自身を除く): 25091084

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 191, 311, 340, 382, 622, 764, 955, 1244, 1555, 1910, 3110, 3247, 3820, 5287, 6220, 6494, 10574, 12988, 16235, 21148, 26435, 32470, 52870, 59401, 64940, 105740, 118802, 237604, 297005, 594010, 1009817, 1188020, 2019634, 4039268, 5049085, 10098170, 20196340]

約数ペア:

[(1, 20196340), (2, 10098170), (4, 5049085), (5, 4039268), (10, 2019634), (17, 1188020), (20, 1009817), (34, 594010), (68, 297005), (85, 237604), (170, 118802), (191, 105740), (311, 64940), (340, 59401), (382, 52870), (622, 32470), (764, 26435), (955, 21148), (1244, 16235), (1555, 12988), (1910, 10574), (3110, 6494), (3247, 6220), (3820, 5287)]