209580420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:382

約数の個数: 192

約数和(自身を含む): 718502400

約数和(自身を除く): 508921980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 102, 105, 119, 140, 149, 170, 197, 204, 210, 238, 255, 298, 340, 357, 394, 420, 447, 476, 510, 591, 595, 596, 714, 745, 788, 894, 985, 1020, 1043, 1182, 1190, 1379, 1428, 1490, 1785, 1788, 1970, 2086, 2235, 2364, 2380, 2533, 2758, 2955, 2980, 3129, 3349, 3570, 3940, 4137, 4172, 4470, 5066, 5215, 5516, 5910, 6258, 6698, 6895, 7140, 7599, 8274, 8940, 10047, 10132, 10430, 11820, 12516, 12665, 13396, 13790, 15198, 15645, 16548, 16745, 17731, 20094, 20685, 20860, 23443, 25330, 27580, 29353, 30396, 31290, 33490, 35462, 37995, 40188, 41370, 46886, 50235, 50660, 53193, 58706, 62580, 66980, 70329, 70924, 75990, 82740, 88059, 88655, 93772, 100470, 106386, 117215, 117412, 140658, 146765, 151980, 176118, 177310, 200940, 205471, 212772, 234430, 265965, 281316, 293530, 351645, 352236, 354620, 410942, 440295, 468860, 499001, 531930, 587060, 616413, 703290, 821884, 880590, 998002, 1027355, 1063860, 1232826, 1406580, 1497003, 1761180, 1996004, 2054710, 2465652, 2495005, 2994006, 3082065, 3493007, 4109420, 4990010, 5988012, 6164130, 6986014, 7485015, 9980020, 10479021, 12328260, 13972028, 14970030, 17465035, 20958042, 29940060, 34930070, 41916084, 52395105, 69860140, 104790210, 209580420]

約数ペア:

[(1, 209580420), (2, 104790210), (3, 69860140), (4, 52395105), (5, 41916084), (6, 34930070), (7, 29940060), (10, 20958042), (12, 17465035), (14, 14970030), (15, 13972028), (17, 12328260), (20, 10479021), (21, 9980020), (28, 7485015), (30, 6986014), (34, 6164130), (35, 5988012), (42, 4990010), (51, 4109420), (60, 3493007), (68, 3082065), (70, 2994006), (84, 2495005), (85, 2465652), (102, 2054710), (105, 1996004), (119, 1761180), (140, 1497003), (149, 1406580), (170, 1232826), (197, 1063860), (204, 1027355), (210, 998002), (238, 880590), (255, 821884), (298, 703290), (340, 616413), (357, 587060), (394, 531930), (420, 499001), (447, 468860), (476, 440295), (510, 410942), (591, 354620), (595, 352236), (596, 351645), (714, 293530), (745, 281316), (788, 265965), (894, 234430), (985, 212772), (1020, 205471), (1043, 200940), (1182, 177310), (1190, 176118), (1379, 151980), (1428, 146765), (1490, 140658), (1785, 117412), (1788, 117215), (1970, 106386), (2086, 100470), (2235, 93772), (2364, 88655), (2380, 88059), (2533, 82740), (2758, 75990), (2955, 70924), (2980, 70329), (3129, 66980), (3349, 62580), (3570, 58706), (3940, 53193), (4137, 50660), (4172, 50235), (4470, 46886), (5066, 41370), (5215, 40188), (5516, 37995), (5910, 35462), (6258, 33490), (6698, 31290), (6895, 30396), (7140, 29353), (7599, 27580), (8274, 25330), (8940, 23443), (10047, 20860), (10132, 20685), (10430, 20094), (11820, 17731), (12516, 16745), (12665, 16548), (13396, 15645), (13790, 15198)]