18475980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{853}}^1$

素因数の和:903

約数の個数: 72

約数和(自身を含む): 54662832

約数和(自身を除く): 36186852

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 361, 380, 570, 722, 853, 1083, 1140, 1444, 1706, 1805, 2166, 2559, 3412, 3610, 4265, 4332, 5118, 5415, 7220, 8530, 10236, 10830, 12795, 16207, 17060, 21660, 25590, 32414, 48621, 51180, 64828, 81035, 97242, 162070, 194484, 243105, 307933, 324140, 486210, 615866, 923799, 972420, 1231732, 1539665, 1847598, 3079330, 3695196, 4618995, 6158660, 9237990, 18475980]

約数ペア:

[(1, 18475980), (2, 9237990), (3, 6158660), (4, 4618995), (5, 3695196), (6, 3079330), (10, 1847598), (12, 1539665), (15, 1231732), (19, 972420), (20, 923799), (30, 615866), (38, 486210), (57, 324140), (60, 307933), (76, 243105), (95, 194484), (114, 162070), (190, 97242), (228, 81035), (285, 64828), (361, 51180), (380, 48621), (570, 32414), (722, 25590), (853, 21660), (1083, 17060), (1140, 16207), (1444, 12795), (1706, 10830), (1805, 10236), (2166, 8530), (2559, 7220), (3412, 5415), (3610, 5118), (4265, 4332)]