81505944

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^2$

素因数の和:162

約数の個数: 144

約数和(自身を含む): 250111680

約数和(自身を除く): 168605736

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 31, 36, 39, 52, 53, 62, 72, 78, 93, 104, 106, 117, 124, 156, 159, 186, 212, 234, 248, 279, 312, 318, 372, 403, 424, 468, 477, 558, 636, 689, 744, 806, 936, 954, 1116, 1209, 1272, 1378, 1612, 1643, 1908, 2067, 2232, 2418, 2756, 2809, 3224, 3286, 3627, 3816, 4134, 4836, 4929, 5512, 5618, 6201, 6572, 7254, 8268, 8427, 9672, 9858, 11236, 12402, 13144, 14508, 14787, 16536, 16854, 19716, 21359, 22472, 24804, 25281, 29016, 29574, 33708, 36517, 39432, 42718, 49608, 50562, 59148, 64077, 67416, 73034, 85436, 87079, 101124, 109551, 118296, 128154, 146068, 170872, 174158, 192231, 202248, 219102, 256308, 261237, 292136, 328653, 348316, 384462, 438204, 512616, 522474, 657306, 696632, 768924, 783711, 876408, 1044948, 1132027, 1314612, 1537848, 1567422, 2089896, 2264054, 2629224, 3134844, 3396081, 4528108, 6269688, 6792162, 9056216, 10188243, 13584324, 20376486, 27168648, 40752972, 81505944]

約数ペア:

[(1, 81505944), (2, 40752972), (3, 27168648), (4, 20376486), (6, 13584324), (8, 10188243), (9, 9056216), (12, 6792162), (13, 6269688), (18, 4528108), (24, 3396081), (26, 3134844), (31, 2629224), (36, 2264054), (39, 2089896), (52, 1567422), (53, 1537848), (62, 1314612), (72, 1132027), (78, 1044948), (93, 876408), (104, 783711), (106, 768924), (117, 696632), (124, 657306), (156, 522474), (159, 512616), (186, 438204), (212, 384462), (234, 348316), (248, 328653), (279, 292136), (312, 261237), (318, 256308), (372, 219102), (403, 202248), (424, 192231), (468, 174158), (477, 170872), (558, 146068), (636, 128154), (689, 118296), (744, 109551), (806, 101124), (936, 87079), (954, 85436), (1116, 73034), (1209, 67416), (1272, 64077), (1378, 59148), (1612, 50562), (1643, 49608), (1908, 42718), (2067, 39432), (2232, 36517), (2418, 33708), (2756, 29574), (2809, 29016), (3224, 25281), (3286, 24804), (3627, 22472), (3816, 21359), (4134, 19716), (4836, 16854), (4929, 16536), (5512, 14787), (5618, 14508), (6201, 13144), (6572, 12402), (7254, 11236), (8268, 9858), (8427, 9672)]