81850080

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1009}}^1$

素因数の和:1053

約数の個数: 144

約数和(自身を含む): 279462960

約数和(自身を除く): 197612880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 169, 195, 208, 240, 260, 312, 338, 390, 416, 480, 507, 520, 624, 676, 780, 845, 1009, 1014, 1040, 1248, 1352, 1560, 1690, 2018, 2028, 2080, 2535, 2704, 3027, 3120, 3380, 4036, 4056, 5045, 5070, 5408, 6054, 6240, 6760, 8072, 8112, 10090, 10140, 12108, 13117, 13520, 15135, 16144, 16224, 20180, 20280, 24216, 26234, 27040, 30270, 32288, 39351, 40360, 40560, 48432, 52468, 60540, 65585, 78702, 80720, 81120, 96864, 104936, 121080, 131170, 157404, 161440, 170521, 196755, 209872, 242160, 262340, 314808, 341042, 393510, 419744, 484320, 511563, 524680, 629616, 682084, 787020, 852605, 1023126, 1049360, 1259232, 1364168, 1574040, 1705210, 2046252, 2098720, 2557815, 2728336, 3148080, 3410420, 4092504, 5115630, 5456672, 6296160, 6820840, 8185008, 10231260, 13641680, 16370016, 20462520, 27283360, 40925040, 81850080]

約数ペア:

[(1, 81850080), (2, 40925040), (3, 27283360), (4, 20462520), (5, 16370016), (6, 13641680), (8, 10231260), (10, 8185008), (12, 6820840), (13, 6296160), (15, 5456672), (16, 5115630), (20, 4092504), (24, 3410420), (26, 3148080), (30, 2728336), (32, 2557815), (39, 2098720), (40, 2046252), (48, 1705210), (52, 1574040), (60, 1364168), (65, 1259232), (78, 1049360), (80, 1023126), (96, 852605), (104, 787020), (120, 682084), (130, 629616), (156, 524680), (160, 511563), (169, 484320), (195, 419744), (208, 393510), (240, 341042), (260, 314808), (312, 262340), (338, 242160), (390, 209872), (416, 196755), (480, 170521), (507, 161440), (520, 157404), (624, 131170), (676, 121080), (780, 104936), (845, 96864), (1009, 81120), (1014, 80720), (1040, 78702), (1248, 65585), (1352, 60540), (1560, 52468), (1690, 48432), (2018, 40560), (2028, 40360), (2080, 39351), (2535, 32288), (2704, 30270), (3027, 27040), (3120, 26234), (3380, 24216), (4036, 20280), (4056, 20180), (5045, 16224), (5070, 16144), (5408, 15135), (6054, 13520), (6240, 13117), (6760, 12108), (8072, 10140), (8112, 10090)]