81955560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{373}}^1\times {\mathrm{1831}}^1$

素因数の和:2218

約数の個数: 64

約数和(自身を含む): 246660480

約数和(自身を除く): 164704920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 373, 746, 1119, 1492, 1831, 1865, 2238, 2984, 3662, 3730, 4476, 5493, 5595, 7324, 7460, 8952, 9155, 10986, 11190, 14648, 14920, 18310, 21972, 22380, 27465, 36620, 43944, 44760, 54930, 73240, 109860, 219720, 682963, 1365926, 2048889, 2731852, 3414815, 4097778, 5463704, 6829630, 8195556, 10244445, 13659260, 16391112, 20488890, 27318520, 40977780, 81955560]

約数ペア:

[(1, 81955560), (2, 40977780), (3, 27318520), (4, 20488890), (5, 16391112), (6, 13659260), (8, 10244445), (10, 8195556), (12, 6829630), (15, 5463704), (20, 4097778), (24, 3414815), (30, 2731852), (40, 2048889), (60, 1365926), (120, 682963), (373, 219720), (746, 109860), (1119, 73240), (1492, 54930), (1831, 44760), (1865, 43944), (2238, 36620), (2984, 27465), (3662, 22380), (3730, 21972), (4476, 18310), (5493, 14920), (5595, 14648), (7324, 11190), (7460, 10986), (8952, 9155)]