7981120

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{509}}^1$

素因数の和:540

約数の個数: 84

約数和(自身を含む): 22151340

約数和(自身を除く): 14170220

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 509, 560, 784, 980, 1018, 1120, 1568, 1960, 2036, 2240, 2545, 3136, 3563, 3920, 4072, 5090, 7126, 7840, 8144, 10180, 14252, 15680, 16288, 17815, 20360, 24941, 28504, 32576, 35630, 40720, 49882, 57008, 71260, 81440, 99764, 114016, 124705, 142520, 162880, 199528, 228032, 249410, 285040, 399056, 498820, 570080, 798112, 997640, 1140160, 1596224, 1995280, 3990560, 7981120]

約数ペア:

[(1, 7981120), (2, 3990560), (4, 1995280), (5, 1596224), (7, 1140160), (8, 997640), (10, 798112), (14, 570080), (16, 498820), (20, 399056), (28, 285040), (32, 249410), (35, 228032), (40, 199528), (49, 162880), (56, 142520), (64, 124705), (70, 114016), (80, 99764), (98, 81440), (112, 71260), (140, 57008), (160, 49882), (196, 40720), (224, 35630), (245, 32576), (280, 28504), (320, 24941), (392, 20360), (448, 17815), (490, 16288), (509, 15680), (560, 14252), (784, 10180), (980, 8144), (1018, 7840), (1120, 7126), (1568, 5090), (1960, 4072), (2036, 3920), (2240, 3563), (2545, 3136)]