18415180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:108

約数の個数: 144

約数和(自身を含む): 50561280

約数和(自身を除く): 32146100

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 23, 28, 35, 38, 43, 46, 49, 70, 76, 86, 92, 95, 98, 115, 133, 140, 161, 172, 190, 196, 215, 230, 245, 266, 301, 322, 380, 430, 437, 460, 490, 532, 602, 644, 665, 805, 817, 860, 874, 931, 980, 989, 1127, 1204, 1330, 1505, 1610, 1634, 1748, 1862, 1978, 2107, 2185, 2254, 2660, 3010, 3059, 3220, 3268, 3724, 3956, 4085, 4214, 4370, 4508, 4655, 4945, 5635, 5719, 6020, 6118, 6923, 8170, 8428, 8740, 9310, 9890, 10535, 11270, 11438, 12236, 13846, 15295, 16340, 18620, 18791, 19780, 21070, 21413, 22540, 22876, 27692, 28595, 30590, 34615, 37582, 40033, 42140, 42826, 48461, 57190, 61180, 69230, 75164, 80066, 85652, 93955, 96922, 107065, 114380, 131537, 138460, 160132, 187910, 193844, 200165, 214130, 242305, 263074, 375820, 400330, 428260, 484610, 526148, 657685, 800660, 920759, 969220, 1315370, 1841518, 2630740, 3683036, 4603795, 9207590, 18415180]

約数ペア:

[(1, 18415180), (2, 9207590), (4, 4603795), (5, 3683036), (7, 2630740), (10, 1841518), (14, 1315370), (19, 969220), (20, 920759), (23, 800660), (28, 657685), (35, 526148), (38, 484610), (43, 428260), (46, 400330), (49, 375820), (70, 263074), (76, 242305), (86, 214130), (92, 200165), (95, 193844), (98, 187910), (115, 160132), (133, 138460), (140, 131537), (161, 114380), (172, 107065), (190, 96922), (196, 93955), (215, 85652), (230, 80066), (245, 75164), (266, 69230), (301, 61180), (322, 57190), (380, 48461), (430, 42826), (437, 42140), (460, 40033), (490, 37582), (532, 34615), (602, 30590), (644, 28595), (665, 27692), (805, 22876), (817, 22540), (860, 21413), (874, 21070), (931, 19780), (980, 18791), (989, 18620), (1127, 16340), (1204, 15295), (1330, 13846), (1505, 12236), (1610, 11438), (1634, 11270), (1748, 10535), (1862, 9890), (1978, 9310), (2107, 8740), (2185, 8428), (2254, 8170), (2660, 6923), (3010, 6118), (3059, 6020), (3220, 5719), (3268, 5635), (3724, 4945), (3956, 4655), (4085, 4508), (4214, 4370)]