51681920

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3511}}^1$

素因数の和:3553

約数の個数: 64

約数和(自身を含む): 128960640

約数和(自身を除く): 77278720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 320, 368, 460, 640, 736, 920, 1472, 1840, 2944, 3511, 3680, 7022, 7360, 14044, 14720, 17555, 28088, 35110, 56176, 70220, 80753, 112352, 140440, 161506, 224704, 280880, 323012, 403765, 449408, 561760, 646024, 807530, 1123520, 1292048, 1615060, 2247040, 2584096, 3230120, 5168192, 6460240, 10336384, 12920480, 25840960, 51681920]

約数ペア:

[(1, 51681920), (2, 25840960), (4, 12920480), (5, 10336384), (8, 6460240), (10, 5168192), (16, 3230120), (20, 2584096), (23, 2247040), (32, 1615060), (40, 1292048), (46, 1123520), (64, 807530), (80, 646024), (92, 561760), (115, 449408), (128, 403765), (160, 323012), (184, 280880), (230, 224704), (320, 161506), (368, 140440), (460, 112352), (640, 80753), (736, 70220), (920, 56176), (1472, 35110), (1840, 28088), (2944, 17555), (3511, 14720), (3680, 14044), (7022, 7360)]