20857079268

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{313}}^1\times {\mathrm{39383}}^1$

素因数の和:39753

約数の個数: 72

約数和(自身を含む): 54017203968

約数和(自身を除く): 33160124700

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 141, 188, 282, 313, 423, 564, 626, 846, 939, 1252, 1692, 1878, 2817, 3756, 5634, 11268, 14711, 29422, 39383, 44133, 58844, 78766, 88266, 118149, 132399, 157532, 176532, 236298, 264798, 354447, 472596, 529596, 708894, 1417788, 1851001, 3702002, 5553003, 7404004, 11106006, 12326879, 16659009, 22212012, 24653758, 33318018, 36980637, 49307516, 66636036, 73961274, 110941911, 147922548, 221883822, 443767644, 579363313, 1158726626, 1738089939, 2317453252, 3476179878, 5214269817, 6952359756, 10428539634, 20857079268]

約数ペア:

[(1, 20857079268), (2, 10428539634), (3, 6952359756), (4, 5214269817), (6, 3476179878), (9, 2317453252), (12, 1738089939), (18, 1158726626), (36, 579363313), (47, 443767644), (94, 221883822), (141, 147922548), (188, 110941911), (282, 73961274), (313, 66636036), (423, 49307516), (564, 36980637), (626, 33318018), (846, 24653758), (939, 22212012), (1252, 16659009), (1692, 12326879), (1878, 11106006), (2817, 7404004), (3756, 5553003), (5634, 3702002), (11268, 1851001), (14711, 1417788), (29422, 708894), (39383, 529596), (44133, 472596), (58844, 354447), (78766, 264798), (88266, 236298), (118149, 176532), (132399, 157532)]