393107820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{935971}}^1$

素因数の和:935990

約数の個数: 48

約数和(自身を含む): 1257946368

約数和(自身を除く): 864838548

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 935971, 1871942, 2807913, 3743884, 4679855, 5615826, 6551797, 9359710, 11231652, 13103594, 14039565, 18719420, 19655391, 26207188, 28079130, 32758985, 39310782, 56158260, 65517970, 78621564, 98276955, 131035940, 196553910, 393107820]

約数ペア:

[(1, 393107820), (2, 196553910), (3, 131035940), (4, 98276955), (5, 78621564), (6, 65517970), (7, 56158260), (10, 39310782), (12, 32758985), (14, 28079130), (15, 26207188), (20, 19655391), (21, 18719420), (28, 14039565), (30, 13103594), (35, 11231652), (42, 9359710), (60, 6551797), (70, 5615826), (84, 4679855), (105, 3743884), (140, 2807913), (210, 1871942), (420, 935971)]