2887777480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{278743}}^1$

素因数の和:278798

約数の個数: 64

約数和(自身を含む): 7626435840

約数和(自身を除く): 4738658360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 2072, 2590, 5180, 10360, 278743, 557486, 1114972, 1393715, 1951201, 2229944, 2787430, 3902402, 5574860, 7804804, 9756005, 10313491, 11149720, 15609608, 19512010, 20626982, 39024020, 41253964, 51567455, 72194437, 78048040, 82507928, 103134910, 144388874, 206269820, 288777748, 360972185, 412539640, 577555496, 721944370, 1443888740, 2887777480]

約数ペア:

[(1, 2887777480), (2, 1443888740), (4, 721944370), (5, 577555496), (7, 412539640), (8, 360972185), (10, 288777748), (14, 206269820), (20, 144388874), (28, 103134910), (35, 82507928), (37, 78048040), (40, 72194437), (56, 51567455), (70, 41253964), (74, 39024020), (140, 20626982), (148, 19512010), (185, 15609608), (259, 11149720), (280, 10313491), (296, 9756005), (370, 7804804), (518, 5574860), (740, 3902402), (1036, 2787430), (1295, 2229944), (1480, 1951201), (2072, 1393715), (2590, 1114972), (5180, 557486), (10360, 278743)]