20857589172

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{337}}^1\times {\mathrm{449}}^1\times {\mathrm{547}}^1$

素因数の和:1350

約数の個数: 144

約数和(自身を含む): 60679382400

約数和(自身を除く): 39821793228

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 337, 449, 547, 674, 898, 1011, 1094, 1347, 1348, 1641, 1796, 2022, 2188, 2359, 2694, 3033, 3143, 3282, 3829, 4041, 4044, 4718, 4923, 5388, 6066, 6286, 6564, 7077, 7658, 8082, 9429, 9436, 9846, 11487, 12132, 12572, 14154, 15316, 16164, 18858, 19692, 21231, 22974, 28287, 28308, 34461, 37716, 42462, 45948, 56574, 68922, 84924, 113148, 137844, 151313, 184339, 245603, 302626, 368678, 453939, 491206, 553017, 605252, 736809, 737356, 907878, 982412, 1059191, 1106034, 1290373, 1361817, 1473618, 1659051, 1719221, 1815756, 2118382, 2210427, 2212068, 2580746, 2723634, 2947236, 3177573, 3318102, 3438442, 3871119, 4236764, 4420854, 5157663, 5161492, 5447268, 6355146, 6636204, 6876884, 7742238, 8841708, 9532719, 10315326, 11613357, 12710292, 15472989, 15484476, 19065438, 20630652, 23226714, 30945978, 38130876, 46453428, 61891956, 82768211, 165536422, 248304633, 331072844, 496609266, 579377477, 744913899, 993218532, 1158754954, 1489827798, 1738132431, 2317509908, 2979655596, 3476264862, 5214397293, 6952529724, 10428794586, 20857589172]

約数ペア:

[(1, 20857589172), (2, 10428794586), (3, 6952529724), (4, 5214397293), (6, 3476264862), (7, 2979655596), (9, 2317509908), (12, 1738132431), (14, 1489827798), (18, 1158754954), (21, 993218532), (28, 744913899), (36, 579377477), (42, 496609266), (63, 331072844), (84, 248304633), (126, 165536422), (252, 82768211), (337, 61891956), (449, 46453428), (547, 38130876), (674, 30945978), (898, 23226714), (1011, 20630652), (1094, 19065438), (1347, 15484476), (1348, 15472989), (1641, 12710292), (1796, 11613357), (2022, 10315326), (2188, 9532719), (2359, 8841708), (2694, 7742238), (3033, 6876884), (3143, 6636204), (3282, 6355146), (3829, 5447268), (4041, 5161492), (4044, 5157663), (4718, 4420854), (4923, 4236764), (5388, 3871119), (6066, 3438442), (6286, 3318102), (6564, 3177573), (7077, 2947236), (7658, 2723634), (8082, 2580746), (9429, 2212068), (9436, 2210427), (9846, 2118382), (11487, 1815756), (12132, 1719221), (12572, 1659051), (14154, 1473618), (15316, 1361817), (16164, 1290373), (18858, 1106034), (19692, 1059191), (21231, 982412), (22974, 907878), (28287, 737356), (28308, 736809), (34461, 605252), (37716, 553017), (42462, 491206), (45948, 453939), (56574, 368678), (68922, 302626), (84924, 245603), (113148, 184339), (137844, 151313)]