20192640

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{809}}^1$

素因数の和:844

約数の個数: 128

約数和(自身を含む): 69400800

約数和(自身を除く): 49208160

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, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 384, 390, 416, 480, 520, 624, 640, 780, 809, 832, 960, 1040, 1248, 1560, 1618, 1664, 1920, 2080, 2427, 2496, 3120, 3236, 4045, 4160, 4854, 4992, 6240, 6472, 8090, 8320, 9708, 10517, 12135, 12480, 12944, 16180, 19416, 21034, 24270, 24960, 25888, 31551, 32360, 38832, 42068, 48540, 51776, 52585, 63102, 64720, 77664, 84136, 97080, 103552, 105170, 126204, 129440, 155328, 157755, 168272, 194160, 210340, 252408, 258880, 310656, 315510, 336544, 388320, 420680, 504816, 517760, 631020, 673088, 776640, 841360, 1009632, 1262040, 1346176, 1553280, 1682720, 2019264, 2524080, 3365440, 4038528, 5048160, 6730880, 10096320, 20192640]

約数ペア:

[(1, 20192640), (2, 10096320), (3, 6730880), (4, 5048160), (5, 4038528), (6, 3365440), (8, 2524080), (10, 2019264), (12, 1682720), (13, 1553280), (15, 1346176), (16, 1262040), (20, 1009632), (24, 841360), (26, 776640), (30, 673088), (32, 631020), (39, 517760), (40, 504816), (48, 420680), (52, 388320), (60, 336544), (64, 315510), (65, 310656), (78, 258880), (80, 252408), (96, 210340), (104, 194160), (120, 168272), (128, 157755), (130, 155328), (156, 129440), (160, 126204), (192, 105170), (195, 103552), (208, 97080), (240, 84136), (260, 77664), (312, 64720), (320, 63102), (384, 52585), (390, 51776), (416, 48540), (480, 42068), (520, 38832), (624, 32360), (640, 31551), (780, 25888), (809, 24960), (832, 24270), (960, 21034), (1040, 19416), (1248, 16180), (1560, 12944), (1618, 12480), (1664, 12135), (1920, 10517), (2080, 9708), (2427, 8320), (2496, 8090), (3120, 6472), (3236, 6240), (4045, 4992), (4160, 4854)]