71777960

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{6823}}^1$

素因数の和:7097

約数の個数: 32

約数和(自身を含む): 162138240

約数和(自身を除く): 90360280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 5260, 6823, 10520, 13646, 27292, 34115, 54584, 68230, 136460, 272920, 1794449, 3588898, 7177796, 8972245, 14355592, 17944490, 35888980, 71777960]

約数ペア:

[(1, 71777960), (2, 35888980), (4, 17944490), (5, 14355592), (8, 8972245), (10, 7177796), (20, 3588898), (40, 1794449), (263, 272920), (526, 136460), (1052, 68230), (1315, 54584), (2104, 34115), (2630, 27292), (5260, 13646), (6823, 10520)]