81180015

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:201

約数の個数: 96

約数和(自身を含む): 163995840

約数和(自身を除く): 82815825

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 49, 51, 73, 85, 89, 105, 119, 147, 219, 245, 255, 267, 357, 365, 445, 511, 595, 623, 735, 833, 1095, 1241, 1335, 1513, 1533, 1785, 1869, 2499, 2555, 3115, 3577, 3723, 4165, 4361, 4539, 6205, 6497, 7565, 7665, 8687, 9345, 10591, 10731, 12495, 13083, 17885, 18615, 19491, 21805, 22695, 26061, 31773, 32485, 43435, 45479, 52955, 53655, 60809, 65415, 74137, 97455, 110449, 130305, 136437, 158865, 182427, 222411, 227395, 304045, 318353, 331347, 370685, 552245, 682185, 773143, 912135, 955059, 1112055, 1591765, 1656735, 2319429, 3865715, 4775295, 5412001, 11597145, 16236003, 27060005, 81180015]

約数ペア:

[(1, 81180015), (3, 27060005), (5, 16236003), (7, 11597145), (15, 5412001), (17, 4775295), (21, 3865715), (35, 2319429), (49, 1656735), (51, 1591765), (73, 1112055), (85, 955059), (89, 912135), (105, 773143), (119, 682185), (147, 552245), (219, 370685), (245, 331347), (255, 318353), (267, 304045), (357, 227395), (365, 222411), (445, 182427), (511, 158865), (595, 136437), (623, 130305), (735, 110449), (833, 97455), (1095, 74137), (1241, 65415), (1335, 60809), (1513, 53655), (1533, 52955), (1785, 45479), (1869, 43435), (2499, 32485), (2555, 31773), (3115, 26061), (3577, 22695), (3723, 21805), (4165, 19491), (4361, 18615), (4539, 17885), (6205, 13083), (6497, 12495), (7565, 10731), (7665, 10591), (8687, 9345)]