66816820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{12899}}^1$

素因数の和:12952

約数の個数: 48

約数和(自身を含む): 164707200

約数和(自身を除く): 97890380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 12899, 25798, 51596, 64495, 90293, 128990, 180586, 257980, 361172, 451465, 477263, 902930, 954526, 1805860, 1909052, 2386315, 3340841, 4772630, 6681682, 9545260, 13363364, 16704205, 33408410, 66816820]

約数ペア:

[(1, 66816820), (2, 33408410), (4, 16704205), (5, 13363364), (7, 9545260), (10, 6681682), (14, 4772630), (20, 3340841), (28, 2386315), (35, 1909052), (37, 1805860), (70, 954526), (74, 902930), (140, 477263), (148, 451465), (185, 361172), (259, 257980), (370, 180586), (518, 128990), (740, 90293), (1036, 64495), (1295, 51596), (2590, 25798), (5180, 12899)]