71352920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{29243}}^1$

素因数の和:29315

約数の個数: 32

約数和(自身を含む): 163181520

約数和(自身を除く): 91828600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 29243, 58486, 116972, 146215, 233944, 292430, 584860, 1169720, 1783823, 3567646, 7135292, 8919115, 14270584, 17838230, 35676460, 71352920]

約数ペア:

[(1, 71352920), (2, 35676460), (4, 17838230), (5, 14270584), (8, 8919115), (10, 7135292), (20, 3567646), (40, 1783823), (61, 1169720), (122, 584860), (244, 292430), (305, 233944), (488, 146215), (610, 116972), (1220, 58486), (2440, 29243)]