20625640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3877}}^1$

素因数の和:3914

約数の個数: 64

約数和(自身を含む): 55843200

約数和(自身を除く): 35217560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 3877, 5320, 7754, 15508, 19385, 27139, 31016, 38770, 54278, 73663, 77540, 108556, 135695, 147326, 155080, 217112, 271390, 294652, 368315, 515641, 542780, 589304, 736630, 1031282, 1085560, 1473260, 2062564, 2578205, 2946520, 4125128, 5156410, 10312820, 20625640]

約数ペア:

[(1, 20625640), (2, 10312820), (4, 5156410), (5, 4125128), (7, 2946520), (8, 2578205), (10, 2062564), (14, 1473260), (19, 1085560), (20, 1031282), (28, 736630), (35, 589304), (38, 542780), (40, 515641), (56, 368315), (70, 294652), (76, 271390), (95, 217112), (133, 155080), (140, 147326), (152, 135695), (190, 108556), (266, 77540), (280, 73663), (380, 54278), (532, 38770), (665, 31016), (760, 27139), (1064, 19385), (1330, 15508), (2660, 7754), (3877, 5320)]