131293540

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{19139}}^1$

素因数の和:19169

約数の個数: 48

約数和(自身を含む): 321552000

約数和(自身を除く): 190258460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 19139, 38278, 76556, 95695, 133973, 191390, 267946, 382780, 535892, 669865, 937811, 1339730, 1875622, 2679460, 3751244, 4689055, 6564677, 9378110, 13129354, 18756220, 26258708, 32823385, 65646770, 131293540]

約数ペア:

[(1, 131293540), (2, 65646770), (4, 32823385), (5, 26258708), (7, 18756220), (10, 13129354), (14, 9378110), (20, 6564677), (28, 4689055), (35, 3751244), (49, 2679460), (70, 1875622), (98, 1339730), (140, 937811), (196, 669865), (245, 535892), (343, 382780), (490, 267946), (686, 191390), (980, 133973), (1372, 95695), (1715, 76556), (3430, 38278), (6860, 19139)]