1278118520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{23899}}^1$

素因数の和:24108

約数の個数: 64

約数和(自身を含む): 3303936000

約数和(自身を除く): 2025817480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 191, 280, 382, 764, 955, 1337, 1528, 1910, 2674, 3820, 5348, 6685, 7640, 10696, 13370, 23899, 26740, 47798, 53480, 95596, 119495, 167293, 191192, 238990, 334586, 477980, 669172, 836465, 955960, 1338344, 1672930, 3345860, 4564709, 6691720, 9129418, 18258836, 22823545, 31952963, 36517672, 45647090, 63905926, 91294180, 127811852, 159764815, 182588360, 255623704, 319529630, 639059260, 1278118520]

約数ペア:

[(1, 1278118520), (2, 639059260), (4, 319529630), (5, 255623704), (7, 182588360), (8, 159764815), (10, 127811852), (14, 91294180), (20, 63905926), (28, 45647090), (35, 36517672), (40, 31952963), (56, 22823545), (70, 18258836), (140, 9129418), (191, 6691720), (280, 4564709), (382, 3345860), (764, 1672930), (955, 1338344), (1337, 955960), (1528, 836465), (1910, 669172), (2674, 477980), (3820, 334586), (5348, 238990), (6685, 191192), (7640, 167293), (10696, 119495), (13370, 95596), (23899, 53480), (26740, 47798)]