80214580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{251}}^1$

素因数の和:337

約数の個数: 72

約数和(自身を含む): 184373280

約数和(自身を除く): 104158700

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 251, 290, 380, 502, 551, 580, 841, 1004, 1102, 1255, 1682, 2204, 2510, 2755, 3364, 4205, 4769, 5020, 5510, 7279, 8410, 9538, 11020, 14558, 15979, 16820, 19076, 23845, 29116, 31958, 36395, 47690, 63916, 72790, 79895, 95380, 138301, 145580, 159790, 211091, 276602, 319580, 422182, 553204, 691505, 844364, 1055455, 1383010, 2110910, 2766020, 4010729, 4221820, 8021458, 16042916, 20053645, 40107290, 80214580]

約数ペア:

[(1, 80214580), (2, 40107290), (4, 20053645), (5, 16042916), (10, 8021458), (19, 4221820), (20, 4010729), (29, 2766020), (38, 2110910), (58, 1383010), (76, 1055455), (95, 844364), (116, 691505), (145, 553204), (190, 422182), (251, 319580), (290, 276602), (380, 211091), (502, 159790), (551, 145580), (580, 138301), (841, 95380), (1004, 79895), (1102, 72790), (1255, 63916), (1682, 47690), (2204, 36395), (2510, 31958), (2755, 29116), (3364, 23845), (4205, 19076), (4769, 16820), (5020, 15979), (5510, 14558), (7279, 11020), (8410, 9538)]