75421980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{1187}}^1$

素因数の和:1555

約数の個数: 72

約数和(自身を含む): 229621392

約数和(自身を除く): 154199412

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 353, 706, 1059, 1187, 1412, 1765, 2118, 2374, 3177, 3530, 3561, 4236, 4748, 5295, 5935, 6354, 7060, 7122, 10590, 10683, 11870, 12708, 14244, 15885, 17805, 21180, 21366, 23740, 31770, 35610, 42732, 53415, 63540, 71220, 106830, 213660, 419011, 838022, 1257033, 1676044, 2095055, 2514066, 3771099, 4190110, 5028132, 6285165, 7542198, 8380220, 12570330, 15084396, 18855495, 25140660, 37710990, 75421980]

約数ペア:

[(1, 75421980), (2, 37710990), (3, 25140660), (4, 18855495), (5, 15084396), (6, 12570330), (9, 8380220), (10, 7542198), (12, 6285165), (15, 5028132), (18, 4190110), (20, 3771099), (30, 2514066), (36, 2095055), (45, 1676044), (60, 1257033), (90, 838022), (180, 419011), (353, 213660), (706, 106830), (1059, 71220), (1187, 63540), (1412, 53415), (1765, 42732), (2118, 35610), (2374, 31770), (3177, 23740), (3530, 21366), (3561, 21180), (4236, 17805), (4748, 15885), (5295, 14244), (5935, 12708), (6354, 11870), (7060, 10683), (7122, 10590)]