31121610

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{401}}^1$

素因数の和:623

約数の個数: 64

約数和(自身を含む): 81043200

約数和(自身を除く): 49921590

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 199, 390, 398, 401, 597, 802, 995, 1194, 1203, 1990, 2005, 2406, 2587, 2985, 4010, 5174, 5213, 5970, 6015, 7761, 10426, 12030, 12935, 15522, 15639, 25870, 26065, 31278, 38805, 52130, 77610, 78195, 79799, 156390, 159598, 239397, 398995, 478794, 797990, 1037387, 1196985, 2074774, 2393970, 3112161, 5186935, 6224322, 10373870, 15560805, 31121610]

約数ペア:

[(1, 31121610), (2, 15560805), (3, 10373870), (5, 6224322), (6, 5186935), (10, 3112161), (13, 2393970), (15, 2074774), (26, 1196985), (30, 1037387), (39, 797990), (65, 478794), (78, 398995), (130, 239397), (195, 159598), (199, 156390), (390, 79799), (398, 78195), (401, 77610), (597, 52130), (802, 38805), (995, 31278), (1194, 26065), (1203, 25870), (1990, 15639), (2005, 15522), (2406, 12935), (2587, 12030), (2985, 10426), (4010, 7761), (5174, 6015), (5213, 5970)]