19357720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:484

約数の個数: 64

約数和(自身を含む): 46422720

約数和(自身を除く): 27065000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 53, 92, 106, 115, 184, 212, 230, 265, 397, 424, 460, 530, 794, 920, 1060, 1219, 1588, 1985, 2120, 2438, 3176, 3970, 4876, 6095, 7940, 9131, 9752, 12190, 15880, 18262, 21041, 24380, 36524, 42082, 45655, 48760, 73048, 84164, 91310, 105205, 168328, 182620, 210410, 365240, 420820, 483943, 841640, 967886, 1935772, 2419715, 3871544, 4839430, 9678860, 19357720]

約数ペア:

[(1, 19357720), (2, 9678860), (4, 4839430), (5, 3871544), (8, 2419715), (10, 1935772), (20, 967886), (23, 841640), (40, 483943), (46, 420820), (53, 365240), (92, 210410), (106, 182620), (115, 168328), (184, 105205), (212, 91310), (230, 84164), (265, 73048), (397, 48760), (424, 45655), (460, 42082), (530, 36524), (794, 24380), (920, 21041), (1060, 18262), (1219, 15880), (1588, 12190), (1985, 9752), (2120, 9131), (2438, 7940), (3176, 6095), (3970, 4876)]