123665640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{147221}}^1$

素因数の和:147242

約数の個数: 64

約数和(自身を含む): 423999360

約数和(自身を除く): 300333720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 147221, 294442, 441663, 588884, 736105, 883326, 1030547, 1177768, 1472210, 1766652, 2061094, 2208315, 2944420, 3091641, 3533304, 4122188, 4416630, 5152735, 5888840, 6183282, 8244376, 8833260, 10305470, 12366564, 15458205, 17666520, 20610940, 24733128, 30916410, 41221880, 61832820, 123665640]

約数ペア:

[(1, 123665640), (2, 61832820), (3, 41221880), (4, 30916410), (5, 24733128), (6, 20610940), (7, 17666520), (8, 15458205), (10, 12366564), (12, 10305470), (14, 8833260), (15, 8244376), (20, 6183282), (21, 5888840), (24, 5152735), (28, 4416630), (30, 4122188), (35, 3533304), (40, 3091641), (42, 2944420), (56, 2208315), (60, 2061094), (70, 1766652), (84, 1472210), (105, 1177768), (120, 1030547), (140, 883326), (168, 736105), (210, 588884), (280, 441663), (420, 294442), (840, 147221)]