131400180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{823}}^1\times {\mathrm{887}}^1$

素因数の和:1725

約数の個数: 72

約数和(自身を含む): 399514752

約数和(自身を除く): 268114572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 823, 887, 1646, 1774, 2469, 2661, 3292, 3548, 4115, 4435, 4938, 5322, 7407, 7983, 8230, 8870, 9876, 10644, 12345, 13305, 14814, 15966, 16460, 17740, 24690, 26610, 29628, 31932, 37035, 39915, 49380, 53220, 74070, 79830, 148140, 159660, 730001, 1460002, 2190003, 2920004, 3650005, 4380006, 6570009, 7300010, 8760012, 10950015, 13140018, 14600020, 21900030, 26280036, 32850045, 43800060, 65700090, 131400180]

約数ペア:

[(1, 131400180), (2, 65700090), (3, 43800060), (4, 32850045), (5, 26280036), (6, 21900030), (9, 14600020), (10, 13140018), (12, 10950015), (15, 8760012), (18, 7300010), (20, 6570009), (30, 4380006), (36, 3650005), (45, 2920004), (60, 2190003), (90, 1460002), (180, 730001), (823, 159660), (887, 148140), (1646, 79830), (1774, 74070), (2469, 53220), (2661, 49380), (3292, 39915), (3548, 37035), (4115, 31932), (4435, 29628), (4938, 26610), (5322, 24690), (7407, 17740), (7983, 16460), (8230, 15966), (8870, 14814), (9876, 13305), (10644, 12345)]