18918432

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:223

約数の個数: 144

約数和(自身を含む): 60173568

約数和(自身を除く): 41255136

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 31, 32, 36, 39, 48, 52, 62, 72, 78, 93, 96, 104, 117, 124, 144, 156, 163, 186, 208, 234, 248, 279, 288, 312, 326, 372, 403, 416, 468, 489, 496, 558, 624, 652, 744, 806, 936, 978, 992, 1116, 1209, 1248, 1304, 1467, 1488, 1612, 1872, 1956, 2119, 2232, 2418, 2608, 2934, 2976, 3224, 3627, 3744, 3912, 4238, 4464, 4836, 5053, 5216, 5868, 6357, 6448, 7254, 7824, 8476, 8928, 9672, 10106, 11736, 12714, 12896, 14508, 15159, 15648, 16952, 19071, 19344, 20212, 23472, 25428, 29016, 30318, 33904, 38142, 38688, 40424, 45477, 46944, 50856, 58032, 60636, 65689, 67808, 76284, 80848, 90954, 101712, 116064, 121272, 131378, 152568, 161696, 181908, 197067, 203424, 242544, 262756, 305136, 363816, 394134, 485088, 525512, 591201, 610272, 727632, 788268, 1051024, 1182402, 1455264, 1576536, 2102048, 2364804, 3153072, 4729608, 6306144, 9459216, 18918432]

約数ペア:

[(1, 18918432), (2, 9459216), (3, 6306144), (4, 4729608), (6, 3153072), (8, 2364804), (9, 2102048), (12, 1576536), (13, 1455264), (16, 1182402), (18, 1051024), (24, 788268), (26, 727632), (31, 610272), (32, 591201), (36, 525512), (39, 485088), (48, 394134), (52, 363816), (62, 305136), (72, 262756), (78, 242544), (93, 203424), (96, 197067), (104, 181908), (117, 161696), (124, 152568), (144, 131378), (156, 121272), (163, 116064), (186, 101712), (208, 90954), (234, 80848), (248, 76284), (279, 67808), (288, 65689), (312, 60636), (326, 58032), (372, 50856), (403, 46944), (416, 45477), (468, 40424), (489, 38688), (496, 38142), (558, 33904), (624, 30318), (652, 29016), (744, 25428), (806, 23472), (936, 20212), (978, 19344), (992, 19071), (1116, 16952), (1209, 15648), (1248, 15159), (1304, 14508), (1467, 12896), (1488, 12714), (1612, 11736), (1872, 10106), (1956, 9672), (2119, 8928), (2232, 8476), (2418, 7824), (2608, 7254), (2934, 6448), (2976, 6357), (3224, 5868), (3627, 5216), (3744, 5053), (3912, 4836), (4238, 4464)]