138445780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{3011}}^1$

素因数の和:3061

約数の個数: 72

約数和(自身を含む): 336500640

約数和(自身を除く): 198054860

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 190, 209, 220, 242, 380, 418, 484, 605, 836, 1045, 1210, 2090, 2299, 2420, 3011, 4180, 4598, 6022, 9196, 11495, 12044, 15055, 22990, 30110, 33121, 45980, 57209, 60220, 66242, 114418, 132484, 165605, 228836, 286045, 331210, 364331, 572090, 629299, 662420, 728662, 1144180, 1258598, 1457324, 1821655, 2517196, 3146495, 3643310, 6292990, 6922289, 7286620, 12585980, 13844578, 27689156, 34611445, 69222890, 138445780]

約数ペア:

[(1, 138445780), (2, 69222890), (4, 34611445), (5, 27689156), (10, 13844578), (11, 12585980), (19, 7286620), (20, 6922289), (22, 6292990), (38, 3643310), (44, 3146495), (55, 2517196), (76, 1821655), (95, 1457324), (110, 1258598), (121, 1144180), (190, 728662), (209, 662420), (220, 629299), (242, 572090), (380, 364331), (418, 331210), (484, 286045), (605, 228836), (836, 165605), (1045, 132484), (1210, 114418), (2090, 66242), (2299, 60220), (2420, 57209), (3011, 45980), (4180, 33121), (4598, 30110), (6022, 22990), (9196, 15055), (11495, 12044)]