30738980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1153}}^1$

素因数の和:1236

約数の個数: 48

約数和(自身を含む): 68242944

約数和(自身を除く): 37503964

約数列:

[1, 2, 4, 5, 10, 20, 31, 43, 62, 86, 124, 155, 172, 215, 310, 430, 620, 860, 1153, 1333, 2306, 2666, 4612, 5332, 5765, 6665, 11530, 13330, 23060, 26660, 35743, 49579, 71486, 99158, 142972, 178715, 198316, 247895, 357430, 495790, 714860, 991580, 1536949, 3073898, 6147796, 7684745, 15369490, 30738980]

約数ペア:

[(1, 30738980), (2, 15369490), (4, 7684745), (5, 6147796), (10, 3073898), (20, 1536949), (31, 991580), (43, 714860), (62, 495790), (86, 357430), (124, 247895), (155, 198316), (172, 178715), (215, 142972), (310, 99158), (430, 71486), (620, 49579), (860, 35743), (1153, 26660), (1333, 23060), (2306, 13330), (2666, 11530), (4612, 6665), (5332, 5765)]