31561980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22871}}^1$

素因数の和:22906

約数の個数: 48

約数和(自身を含む): 92219904

約数和(自身を除く): 60657924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 22871, 45742, 68613, 91484, 114355, 137226, 228710, 274452, 343065, 457420, 526033, 686130, 1052066, 1372260, 1578099, 2104132, 2630165, 3156198, 5260330, 6312396, 7890495, 10520660, 15780990, 31561980]

約数ペア:

[(1, 31561980), (2, 15780990), (3, 10520660), (4, 7890495), (5, 6312396), (6, 5260330), (10, 3156198), (12, 2630165), (15, 2104132), (20, 1578099), (23, 1372260), (30, 1052066), (46, 686130), (60, 526033), (69, 457420), (92, 343065), (115, 274452), (138, 228710), (230, 137226), (276, 114355), (345, 91484), (460, 68613), (690, 45742), (1380, 22871)]