18242560

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{509}}^1$

素因数の和:541

約数の個数: 88

約数和(自身を含む): 50110560

約数和(自身を除く): 31868000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 509, 512, 560, 640, 896, 1018, 1024, 1120, 1280, 1792, 2036, 2240, 2545, 2560, 3563, 3584, 4072, 4480, 5090, 5120, 7126, 7168, 8144, 8960, 10180, 14252, 16288, 17815, 17920, 20360, 28504, 32576, 35630, 35840, 40720, 57008, 65152, 71260, 81440, 114016, 130304, 142520, 162880, 228032, 260608, 285040, 325760, 456064, 521216, 570080, 651520, 912128, 1140160, 1303040, 1824256, 2280320, 2606080, 3648512, 4560640, 9121280, 18242560]

約数ペア:

[(1, 18242560), (2, 9121280), (4, 4560640), (5, 3648512), (7, 2606080), (8, 2280320), (10, 1824256), (14, 1303040), (16, 1140160), (20, 912128), (28, 651520), (32, 570080), (35, 521216), (40, 456064), (56, 325760), (64, 285040), (70, 260608), (80, 228032), (112, 162880), (128, 142520), (140, 130304), (160, 114016), (224, 81440), (256, 71260), (280, 65152), (320, 57008), (448, 40720), (509, 35840), (512, 35630), (560, 32576), (640, 28504), (896, 20360), (1018, 17920), (1024, 17815), (1120, 16288), (1280, 14252), (1792, 10180), (2036, 8960), (2240, 8144), (2545, 7168), (2560, 7126), (3563, 5120), (3584, 5090), (4072, 4480)]