20805588

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:325

約数の個数: 72

約数和(自身を含む): 55118336

約数和(自身を除く): 34312748

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 103, 124, 181, 186, 206, 279, 309, 362, 372, 412, 543, 558, 618, 724, 927, 1086, 1116, 1236, 1629, 1854, 2172, 3193, 3258, 3708, 5611, 6386, 6516, 9579, 11222, 12772, 16833, 18643, 19158, 22444, 28737, 33666, 37286, 38316, 50499, 55929, 57474, 67332, 74572, 100998, 111858, 114948, 167787, 201996, 223716, 335574, 577933, 671148, 1155866, 1733799, 2311732, 3467598, 5201397, 6935196, 10402794, 20805588]

約数ペア:

[(1, 20805588), (2, 10402794), (3, 6935196), (4, 5201397), (6, 3467598), (9, 2311732), (12, 1733799), (18, 1155866), (31, 671148), (36, 577933), (62, 335574), (93, 223716), (103, 201996), (124, 167787), (181, 114948), (186, 111858), (206, 100998), (279, 74572), (309, 67332), (362, 57474), (372, 55929), (412, 50499), (543, 38316), (558, 37286), (618, 33666), (724, 28737), (927, 22444), (1086, 19158), (1116, 18643), (1236, 16833), (1629, 12772), (1854, 11222), (2172, 9579), (3193, 6516), (3258, 6386), (3708, 5611)]