19659720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{947}}^1$

素因数の和:1134

約数の個数: 64

約数和(自身を含む): 59382720

約数和(自身を除く): 39723000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 173, 346, 519, 692, 865, 947, 1038, 1384, 1730, 1894, 2076, 2595, 2841, 3460, 3788, 4152, 4735, 5190, 5682, 6920, 7576, 9470, 10380, 11364, 14205, 18940, 20760, 22728, 28410, 37880, 56820, 113640, 163831, 327662, 491493, 655324, 819155, 982986, 1310648, 1638310, 1965972, 2457465, 3276620, 3931944, 4914930, 6553240, 9829860, 19659720]

約数ペア:

[(1, 19659720), (2, 9829860), (3, 6553240), (4, 4914930), (5, 3931944), (6, 3276620), (8, 2457465), (10, 1965972), (12, 1638310), (15, 1310648), (20, 982986), (24, 819155), (30, 655324), (40, 491493), (60, 327662), (120, 163831), (173, 113640), (346, 56820), (519, 37880), (692, 28410), (865, 22728), (947, 20760), (1038, 18940), (1384, 14205), (1730, 11364), (1894, 10380), (2076, 9470), (2595, 7576), (2841, 6920), (3460, 5682), (3788, 5190), (4152, 4735)]