20216277508

素因数分解:

$2^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{643}}^1\times {\mathrm{3413}}^1$

素因数の和:4121

約数の個数: 72

約数和(自身を含む): 42107893632

約数和(自身を除く): 21891616124

約数列:

[1, 2, 4, 7, 14, 28, 47, 49, 94, 98, 188, 196, 329, 643, 658, 1286, 1316, 2303, 2572, 3413, 4501, 4606, 6826, 9002, 9212, 13652, 18004, 23891, 30221, 31507, 47782, 60442, 63014, 95564, 120884, 126028, 160411, 167237, 211547, 320822, 334474, 423094, 641644, 668948, 846188, 1122877, 1480829, 2194559, 2245754, 2961658, 4389118, 4491508, 5923316, 7860139, 8778236, 15361913, 15720278, 30723826, 31440556, 61447652, 103144273, 107533391, 206288546, 215066782, 412577092, 430133564, 722009911, 1444019822, 2888039644, 5054069377, 10108138754, 20216277508]

約数ペア:

[(1, 20216277508), (2, 10108138754), (4, 5054069377), (7, 2888039644), (14, 1444019822), (28, 722009911), (47, 430133564), (49, 412577092), (94, 215066782), (98, 206288546), (188, 107533391), (196, 103144273), (329, 61447652), (643, 31440556), (658, 30723826), (1286, 15720278), (1316, 15361913), (2303, 8778236), (2572, 7860139), (3413, 5923316), (4501, 4491508), (4606, 4389118), (6826, 2961658), (9002, 2245754), (9212, 2194559), (13652, 1480829), (18004, 1122877), (23891, 846188), (30221, 668948), (31507, 641644), (47782, 423094), (60442, 334474), (63014, 320822), (95564, 211547), (120884, 167237), (126028, 160411)]