12941720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{439}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 32313600

約数和(自身を除く): 19371880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 67, 88, 110, 134, 220, 268, 335, 439, 440, 536, 670, 737, 878, 1340, 1474, 1756, 2195, 2680, 2948, 3512, 3685, 4390, 4829, 5896, 7370, 8780, 9658, 14740, 17560, 19316, 24145, 29413, 29480, 38632, 48290, 58826, 96580, 117652, 147065, 193160, 235304, 294130, 323543, 588260, 647086, 1176520, 1294172, 1617715, 2588344, 3235430, 6470860, 12941720]

約数ペア:

[(1, 12941720), (2, 6470860), (4, 3235430), (5, 2588344), (8, 1617715), (10, 1294172), (11, 1176520), (20, 647086), (22, 588260), (40, 323543), (44, 294130), (55, 235304), (67, 193160), (88, 147065), (110, 117652), (134, 96580), (220, 58826), (268, 48290), (335, 38632), (439, 29480), (440, 29413), (536, 24145), (670, 19316), (737, 17560), (878, 14740), (1340, 9658), (1474, 8780), (1756, 7370), (2195, 5896), (2680, 4829), (2948, 4390), (3512, 3685)]