81316260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1667}}^1$

素因数の和:1953

約数の個数: 72

約数和(自身を含む): 247718016

約数和(自身を除く): 166401756

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 271, 542, 813, 1084, 1355, 1626, 1667, 2439, 2710, 3252, 3334, 4065, 4878, 5001, 5420, 6668, 8130, 8335, 9756, 10002, 12195, 15003, 16260, 16670, 20004, 24390, 25005, 30006, 33340, 48780, 50010, 60012, 75015, 100020, 150030, 300060, 451757, 903514, 1355271, 1807028, 2258785, 2710542, 4065813, 4517570, 5421084, 6776355, 8131626, 9035140, 13552710, 16263252, 20329065, 27105420, 40658130, 81316260]

約数ペア:

[(1, 81316260), (2, 40658130), (3, 27105420), (4, 20329065), (5, 16263252), (6, 13552710), (9, 9035140), (10, 8131626), (12, 6776355), (15, 5421084), (18, 4517570), (20, 4065813), (30, 2710542), (36, 2258785), (45, 1807028), (60, 1355271), (90, 903514), (180, 451757), (271, 300060), (542, 150030), (813, 100020), (1084, 75015), (1355, 60012), (1626, 50010), (1667, 48780), (2439, 33340), (2710, 30006), (3252, 25005), (3334, 24390), (4065, 20004), (4878, 16670), (5001, 16260), (5420, 15003), (6668, 12195), (8130, 10002), (8335, 9756)]