87900820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{4517}}^1$

素因数の和:4672

約数の個数: 48

約数和(自身を含む): 212526720

約数和(自身を除く): 124625900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4517, 4865, 9034, 9730, 18068, 19460, 22585, 31619, 45170, 63238, 90340, 126476, 158095, 316190, 627863, 632380, 1255726, 2511452, 3139315, 4395041, 6278630, 8790082, 12557260, 17580164, 21975205, 43950410, 87900820]

約数ペア:

[(1, 87900820), (2, 43950410), (4, 21975205), (5, 17580164), (7, 12557260), (10, 8790082), (14, 6278630), (20, 4395041), (28, 3139315), (35, 2511452), (70, 1255726), (139, 632380), (140, 627863), (278, 316190), (556, 158095), (695, 126476), (973, 90340), (1390, 63238), (1946, 45170), (2780, 31619), (3892, 22585), (4517, 19460), (4865, 18068), (9034, 9730)]