28187784

素因数分解:

$2^3\times 3^3\times {\mathrm{37}}^1\times {\mathrm{3527}}^1$

素因数の和:3579

約数の個数: 64

約数和(自身を含む): 80438400

約数和(自身を除く): 52250616

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 37, 54, 72, 74, 108, 111, 148, 216, 222, 296, 333, 444, 666, 888, 999, 1332, 1998, 2664, 3527, 3996, 7054, 7992, 10581, 14108, 21162, 28216, 31743, 42324, 63486, 84648, 95229, 126972, 130499, 190458, 253944, 260998, 380916, 391497, 521996, 761832, 782994, 1043992, 1174491, 1565988, 2348982, 3131976, 3523473, 4697964, 7046946, 9395928, 14093892, 28187784]

約数ペア:

[(1, 28187784), (2, 14093892), (3, 9395928), (4, 7046946), (6, 4697964), (8, 3523473), (9, 3131976), (12, 2348982), (18, 1565988), (24, 1174491), (27, 1043992), (36, 782994), (37, 761832), (54, 521996), (72, 391497), (74, 380916), (108, 260998), (111, 253944), (148, 190458), (216, 130499), (222, 126972), (296, 95229), (333, 84648), (444, 63486), (666, 42324), (888, 31743), (999, 28216), (1332, 21162), (1998, 14108), (2664, 10581), (3527, 7992), (3996, 7054)]