20109204

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{487}}^1$

素因数の和:565

約数の個数: 72

約数和(自身を含む): 54000128

約数和(自身を除く): 33890924

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 37, 62, 74, 93, 111, 124, 148, 186, 222, 279, 333, 372, 444, 487, 558, 666, 974, 1116, 1147, 1332, 1461, 1948, 2294, 2922, 3441, 4383, 4588, 5844, 6882, 8766, 10323, 13764, 15097, 17532, 18019, 20646, 30194, 36038, 41292, 45291, 54057, 60388, 72076, 90582, 108114, 135873, 162171, 181164, 216228, 271746, 324342, 543492, 558589, 648684, 1117178, 1675767, 2234356, 3351534, 5027301, 6703068, 10054602, 20109204]

約数ペア:

[(1, 20109204), (2, 10054602), (3, 6703068), (4, 5027301), (6, 3351534), (9, 2234356), (12, 1675767), (18, 1117178), (31, 648684), (36, 558589), (37, 543492), (62, 324342), (74, 271746), (93, 216228), (111, 181164), (124, 162171), (148, 135873), (186, 108114), (222, 90582), (279, 72076), (333, 60388), (372, 54057), (444, 45291), (487, 41292), (558, 36038), (666, 30194), (974, 20646), (1116, 18019), (1147, 17532), (1332, 15097), (1461, 13764), (1948, 10323), (2294, 8766), (2922, 6882), (3441, 5844), (4383, 4588)]