81989760

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{42703}}^1$

素因数の和:42725

約数の個数: 64

約数和(自身を含む): 261348480

約数和(自身を除く): 179358720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 42703, 85406, 128109, 170812, 213515, 256218, 341624, 427030, 512436, 640545, 683248, 854060, 1024872, 1281090, 1366496, 1708120, 2049744, 2562180, 2732992, 3416240, 4099488, 5124360, 5465984, 6832480, 8198976, 10248720, 13664960, 16397952, 20497440, 27329920, 40994880, 81989760]

約数ペア:

[(1, 81989760), (2, 40994880), (3, 27329920), (4, 20497440), (5, 16397952), (6, 13664960), (8, 10248720), (10, 8198976), (12, 6832480), (15, 5465984), (16, 5124360), (20, 4099488), (24, 3416240), (30, 2732992), (32, 2562180), (40, 2049744), (48, 1708120), (60, 1366496), (64, 1281090), (80, 1024872), (96, 854060), (120, 683248), (128, 640545), (160, 512436), (192, 427030), (240, 341624), (320, 256218), (384, 213515), (480, 170812), (640, 128109), (960, 85406), (1920, 42703)]