20497440

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{42703}}^1$

素因数の和:42721

約数の個数: 48

約数和(自身を含む): 64568448

約数和(自身を除く): 44071008

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 42703, 85406, 128109, 170812, 213515, 256218, 341624, 427030, 512436, 640545, 683248, 854060, 1024872, 1281090, 1366496, 1708120, 2049744, 2562180, 3416240, 4099488, 5124360, 6832480, 10248720, 20497440]

約数ペア:

[(1, 20497440), (2, 10248720), (3, 6832480), (4, 5124360), (5, 4099488), (6, 3416240), (8, 2562180), (10, 2049744), (12, 1708120), (15, 1366496), (16, 1281090), (20, 1024872), (24, 854060), (30, 683248), (32, 640545), (40, 512436), (48, 427030), (60, 341624), (80, 256218), (96, 213515), (120, 170812), (160, 128109), (240, 85406), (480, 42703)]