18888480

素因数分解:

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

素因数の和:1043

約数の個数: 144

約数和(自身を含む): 69483960

約数和(自身を除く): 50595480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 360, 390, 416, 468, 480, 520, 585, 624, 720, 780, 936, 1009, 1040, 1170, 1248, 1440, 1560, 1872, 2018, 2080, 2340, 3027, 3120, 3744, 4036, 4680, 5045, 6054, 6240, 8072, 9081, 9360, 10090, 12108, 13117, 15135, 16144, 18162, 18720, 20180, 24216, 26234, 30270, 32288, 36324, 39351, 40360, 45405, 48432, 52468, 60540, 65585, 72648, 78702, 80720, 90810, 96864, 104936, 118053, 121080, 131170, 145296, 157404, 161440, 181620, 196755, 209872, 236106, 242160, 262340, 290592, 314808, 363240, 393510, 419744, 472212, 484320, 524680, 590265, 629616, 726480, 787020, 944424, 1049360, 1180530, 1259232, 1452960, 1574040, 1888848, 2098720, 2361060, 3148080, 3777696, 4722120, 6296160, 9444240, 18888480]

約数ペア:

[(1, 18888480), (2, 9444240), (3, 6296160), (4, 4722120), (5, 3777696), (6, 3148080), (8, 2361060), (9, 2098720), (10, 1888848), (12, 1574040), (13, 1452960), (15, 1259232), (16, 1180530), (18, 1049360), (20, 944424), (24, 787020), (26, 726480), (30, 629616), (32, 590265), (36, 524680), (39, 484320), (40, 472212), (45, 419744), (48, 393510), (52, 363240), (60, 314808), (65, 290592), (72, 262340), (78, 242160), (80, 236106), (90, 209872), (96, 196755), (104, 181620), (117, 161440), (120, 157404), (130, 145296), (144, 131170), (156, 121080), (160, 118053), (180, 104936), (195, 96864), (208, 90810), (234, 80720), (240, 78702), (260, 72648), (288, 65585), (312, 60540), (360, 52468), (390, 48432), (416, 45405), (468, 40360), (480, 39351), (520, 36324), (585, 32288), (624, 30270), (720, 26234), (780, 24216), (936, 20180), (1009, 18720), (1040, 18162), (1170, 16144), (1248, 15135), (1440, 13117), (1560, 12108), (1872, 10090), (2018, 9360), (2080, 9081), (2340, 8072), (3027, 6240), (3120, 6054), (3744, 5045), (4036, 4680)]