81184180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{443}}^1$

素因数の和:494

約数の個数: 144

約数和(自身を含む): 229594176

約数和(自身を除く): 148409996

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 17, 20, 22, 28, 34, 35, 44, 49, 55, 68, 70, 77, 85, 98, 110, 119, 140, 154, 170, 187, 196, 220, 238, 245, 308, 340, 374, 385, 443, 476, 490, 539, 595, 748, 770, 833, 886, 935, 980, 1078, 1190, 1309, 1540, 1666, 1772, 1870, 2156, 2215, 2380, 2618, 2695, 3101, 3332, 3740, 4165, 4430, 4873, 5236, 5390, 6202, 6545, 7531, 8330, 8860, 9163, 9746, 10780, 12404, 13090, 15062, 15505, 16660, 18326, 19492, 21707, 24365, 26180, 30124, 31010, 34111, 36652, 37655, 43414, 45815, 48730, 52717, 62020, 68222, 75310, 82841, 86828, 91630, 97460, 105434, 108535, 136444, 150620, 165682, 170555, 183260, 210868, 217070, 238777, 263585, 331364, 341110, 369019, 414205, 434140, 477554, 527170, 579887, 682220, 738038, 828410, 955108, 1054340, 1159774, 1193885, 1476076, 1656820, 1845095, 2319548, 2387770, 2899435, 3690190, 4059209, 4775540, 5798870, 7380380, 8118418, 11597740, 16236836, 20296045, 40592090, 81184180]

約数ペア:

[(1, 81184180), (2, 40592090), (4, 20296045), (5, 16236836), (7, 11597740), (10, 8118418), (11, 7380380), (14, 5798870), (17, 4775540), (20, 4059209), (22, 3690190), (28, 2899435), (34, 2387770), (35, 2319548), (44, 1845095), (49, 1656820), (55, 1476076), (68, 1193885), (70, 1159774), (77, 1054340), (85, 955108), (98, 828410), (110, 738038), (119, 682220), (140, 579887), (154, 527170), (170, 477554), (187, 434140), (196, 414205), (220, 369019), (238, 341110), (245, 331364), (308, 263585), (340, 238777), (374, 217070), (385, 210868), (443, 183260), (476, 170555), (490, 165682), (539, 150620), (595, 136444), (748, 108535), (770, 105434), (833, 97460), (886, 91630), (935, 86828), (980, 82841), (1078, 75310), (1190, 68222), (1309, 62020), (1540, 52717), (1666, 48730), (1772, 45815), (1870, 43414), (2156, 37655), (2215, 36652), (2380, 34111), (2618, 31010), (2695, 30124), (3101, 26180), (3332, 24365), (3740, 21707), (4165, 19492), (4430, 18326), (4873, 16660), (5236, 15505), (5390, 15062), (6202, 13090), (6545, 12404), (7531, 10780), (8330, 9746), (8860, 9163)]