61438980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{211}}^2$

素因数の和:457

約数の個数: 72

約数和(自身を含む): 180363456

約数和(自身を除く): 118924476

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 211, 230, 276, 345, 422, 460, 633, 690, 844, 1055, 1266, 1380, 2110, 2532, 3165, 4220, 4853, 6330, 9706, 12660, 14559, 19412, 24265, 29118, 44521, 48530, 58236, 72795, 89042, 97060, 133563, 145590, 178084, 222605, 267126, 291180, 445210, 534252, 667815, 890420, 1023983, 1335630, 2047966, 2671260, 3071949, 4095932, 5119915, 6143898, 10239830, 12287796, 15359745, 20479660, 30719490, 61438980]

約数ペア:

[(1, 61438980), (2, 30719490), (3, 20479660), (4, 15359745), (5, 12287796), (6, 10239830), (10, 6143898), (12, 5119915), (15, 4095932), (20, 3071949), (23, 2671260), (30, 2047966), (46, 1335630), (60, 1023983), (69, 890420), (92, 667815), (115, 534252), (138, 445210), (211, 291180), (230, 267126), (276, 222605), (345, 178084), (422, 145590), (460, 133563), (633, 97060), (690, 89042), (844, 72795), (1055, 58236), (1266, 48530), (1380, 44521), (2110, 29118), (2532, 24265), (3165, 19412), (4220, 14559), (4853, 12660), (6330, 9706)]