39916980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1051}}^1$

素因数の和:1277

約数の個数: 72

約数和(自身を含む): 121771104

約数和(自身を除く): 81854124

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 211, 422, 633, 844, 1051, 1055, 1266, 1899, 2102, 2110, 2532, 3153, 3165, 3798, 4204, 4220, 5255, 6306, 6330, 7596, 9459, 9495, 10510, 12612, 12660, 15765, 18918, 18990, 21020, 31530, 37836, 37980, 47295, 63060, 94590, 189180, 221761, 443522, 665283, 887044, 1108805, 1330566, 1995849, 2217610, 2661132, 3326415, 3991698, 4435220, 6652830, 7983396, 9979245, 13305660, 19958490, 39916980]

約数ペア:

[(1, 39916980), (2, 19958490), (3, 13305660), (4, 9979245), (5, 7983396), (6, 6652830), (9, 4435220), (10, 3991698), (12, 3326415), (15, 2661132), (18, 2217610), (20, 1995849), (30, 1330566), (36, 1108805), (45, 887044), (60, 665283), (90, 443522), (180, 221761), (211, 189180), (422, 94590), (633, 63060), (844, 47295), (1051, 37980), (1055, 37836), (1266, 31530), (1899, 21020), (2102, 18990), (2110, 18918), (2532, 15765), (3153, 12660), (3165, 12612), (3798, 10510), (4204, 9495), (4220, 9459), (5255, 7596), (6306, 6330)]