18897840

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{673}}^1$

素因数の和:708

約数の個数: 160

約数和(自身を含む): 70203840

約数和(自身を除く): 51306000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 104, 108, 117, 120, 130, 135, 144, 156, 180, 195, 208, 216, 234, 240, 260, 270, 312, 351, 360, 390, 432, 468, 520, 540, 585, 624, 673, 702, 720, 780, 936, 1040, 1080, 1170, 1346, 1404, 1560, 1755, 1872, 2019, 2160, 2340, 2692, 2808, 3120, 3365, 3510, 4038, 4680, 5384, 5616, 6057, 6730, 7020, 8076, 8749, 9360, 10095, 10768, 12114, 13460, 14040, 16152, 17498, 18171, 20190, 24228, 26247, 26920, 28080, 30285, 32304, 34996, 36342, 40380, 43745, 48456, 52494, 53840, 60570, 69992, 72684, 78741, 80760, 87490, 90855, 96912, 104988, 121140, 131235, 139984, 145368, 157482, 161520, 174980, 181710, 209976, 236223, 242280, 262470, 290736, 314964, 349960, 363420, 393705, 419952, 472446, 484560, 524940, 629928, 699920, 726840, 787410, 944892, 1049880, 1181115, 1259856, 1453680, 1574820, 1889784, 2099760, 2362230, 3149640, 3779568, 4724460, 6299280, 9448920, 18897840]

約数ペア:

[(1, 18897840), (2, 9448920), (3, 6299280), (4, 4724460), (5, 3779568), (6, 3149640), (8, 2362230), (9, 2099760), (10, 1889784), (12, 1574820), (13, 1453680), (15, 1259856), (16, 1181115), (18, 1049880), (20, 944892), (24, 787410), (26, 726840), (27, 699920), (30, 629928), (36, 524940), (39, 484560), (40, 472446), (45, 419952), (48, 393705), (52, 363420), (54, 349960), (60, 314964), (65, 290736), (72, 262470), (78, 242280), (80, 236223), (90, 209976), (104, 181710), (108, 174980), (117, 161520), (120, 157482), (130, 145368), (135, 139984), (144, 131235), (156, 121140), (180, 104988), (195, 96912), (208, 90855), (216, 87490), (234, 80760), (240, 78741), (260, 72684), (270, 69992), (312, 60570), (351, 53840), (360, 52494), (390, 48456), (432, 43745), (468, 40380), (520, 36342), (540, 34996), (585, 32304), (624, 30285), (673, 28080), (702, 26920), (720, 26247), (780, 24228), (936, 20190), (1040, 18171), (1080, 17498), (1170, 16152), (1346, 14040), (1404, 13460), (1560, 12114), (1755, 10768), (1872, 10095), (2019, 9360), (2160, 8749), (2340, 8076), (2692, 7020), (2808, 6730), (3120, 6057), (3365, 5616), (3510, 5384), (4038, 4680)]