66978540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2677}}^1$

素因数の和:2831

約数の個数: 72

約数和(自身を含む): 204706320

約数和(自身を除く): 137727780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1251, 1390, 1668, 2085, 2502, 2677, 2780, 4170, 5004, 5354, 6255, 8031, 8340, 10708, 12510, 13385, 16062, 24093, 25020, 26770, 32124, 40155, 48186, 53540, 80310, 96372, 120465, 160620, 240930, 372103, 481860, 744206, 1116309, 1488412, 1860515, 2232618, 3348927, 3721030, 4465236, 5581545, 6697854, 7442060, 11163090, 13395708, 16744635, 22326180, 33489270, 66978540]

約数ペア:

[(1, 66978540), (2, 33489270), (3, 22326180), (4, 16744635), (5, 13395708), (6, 11163090), (9, 7442060), (10, 6697854), (12, 5581545), (15, 4465236), (18, 3721030), (20, 3348927), (30, 2232618), (36, 1860515), (45, 1488412), (60, 1116309), (90, 744206), (139, 481860), (180, 372103), (278, 240930), (417, 160620), (556, 120465), (695, 96372), (834, 80310), (1251, 53540), (1390, 48186), (1668, 40155), (2085, 32124), (2502, 26770), (2677, 25020), (2780, 24093), (4170, 16062), (5004, 13385), (5354, 12510), (6255, 10708), (8031, 8340)]