81269880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1741}}^1$

素因数の和:2144

約数の個数: 64

約数和(自身を含む): 244576800

約数和(自身を除く): 163306920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 389, 778, 1167, 1556, 1741, 1945, 2334, 3112, 3482, 3890, 4668, 5223, 5835, 6964, 7780, 8705, 9336, 10446, 11670, 13928, 15560, 17410, 20892, 23340, 26115, 34820, 41784, 46680, 52230, 69640, 104460, 208920, 677249, 1354498, 2031747, 2708996, 3386245, 4063494, 5417992, 6772490, 8126988, 10158735, 13544980, 16253976, 20317470, 27089960, 40634940, 81269880]

約数ペア:

[(1, 81269880), (2, 40634940), (3, 27089960), (4, 20317470), (5, 16253976), (6, 13544980), (8, 10158735), (10, 8126988), (12, 6772490), (15, 5417992), (20, 4063494), (24, 3386245), (30, 2708996), (40, 2031747), (60, 1354498), (120, 677249), (389, 208920), (778, 104460), (1167, 69640), (1556, 52230), (1741, 46680), (1945, 41784), (2334, 34820), (3112, 26115), (3482, 23340), (3890, 20892), (4668, 17410), (5223, 15560), (5835, 13928), (6964, 11670), (7780, 10446), (8705, 9336)]