820048697728

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{1987}}^1\times {\mathrm{248021}}^1$

素因数の和:250035

約数の個数: 64

約数和(自身を含む): 1760251817520

約数和(自身を除く): 940203119792

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 1987, 3974, 7948, 15896, 25831, 31792, 51662, 63584, 103324, 127168, 206648, 248021, 254336, 413296, 496042, 826592, 992084, 1653184, 1984168, 3224273, 3306368, 3968336, 6448546, 7936672, 12897092, 15873344, 25794184, 31746688, 51588368, 103176736, 206353472, 412706944, 492817727, 985635454, 1971270908, 3942541816, 6406630451, 7885083632, 12813260902, 15770167264, 25626521804, 31540334528, 51253043608, 63080669056, 102506087216, 205012174432, 410024348864, 820048697728]

約数ペア:

[(1, 820048697728), (2, 410024348864), (4, 205012174432), (8, 102506087216), (13, 63080669056), (16, 51253043608), (26, 31540334528), (32, 25626521804), (52, 15770167264), (64, 12813260902), (104, 7885083632), (128, 6406630451), (208, 3942541816), (416, 1971270908), (832, 985635454), (1664, 492817727), (1987, 412706944), (3974, 206353472), (7948, 103176736), (15896, 51588368), (25831, 31746688), (31792, 25794184), (51662, 15873344), (63584, 12897092), (103324, 7936672), (127168, 6448546), (206648, 3968336), (248021, 3306368), (254336, 3224273), (413296, 1984168), (496042, 1653184), (826592, 992084)]