203765985

素因数分解:

$3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{419}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 360884160

約数和(自身を除く): 157118175

約数列:

[1, 3, 5, 9, 15, 45, 101, 107, 303, 321, 419, 505, 535, 909, 963, 1257, 1515, 1605, 2095, 3771, 4545, 4815, 6285, 10807, 18855, 32421, 42319, 44833, 54035, 97263, 126957, 134499, 162105, 211595, 224165, 380871, 403497, 486315, 634785, 672495, 1904355, 2017485, 4528133, 13584399, 22640665, 40753197, 67921995, 203765985]

約数ペア:

[(1, 203765985), (3, 67921995), (5, 40753197), (9, 22640665), (15, 13584399), (45, 4528133), (101, 2017485), (107, 1904355), (303, 672495), (321, 634785), (419, 486315), (505, 403497), (535, 380871), (909, 224165), (963, 211595), (1257, 162105), (1515, 134499), (1605, 126957), (2095, 97263), (3771, 54035), (4545, 44833), (4815, 42319), (6285, 32421), (10807, 18855)]