20785812

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{251}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 49900032

約数和(自身を除く): 29114220

約数列:

[1, 2, 3, 4, 6, 12, 67, 103, 134, 201, 206, 251, 268, 309, 402, 412, 502, 618, 753, 804, 1004, 1236, 1506, 3012, 6901, 13802, 16817, 20703, 25853, 27604, 33634, 41406, 50451, 51706, 67268, 77559, 82812, 100902, 103412, 155118, 201804, 310236, 1732151, 3464302, 5196453, 6928604, 10392906, 20785812]

約数ペア:

[(1, 20785812), (2, 10392906), (3, 6928604), (4, 5196453), (6, 3464302), (12, 1732151), (67, 310236), (103, 201804), (134, 155118), (201, 103412), (206, 100902), (251, 82812), (268, 77559), (309, 67268), (402, 51706), (412, 50451), (502, 41406), (618, 33634), (753, 27604), (804, 25853), (1004, 20703), (1236, 16817), (1506, 13802), (3012, 6901)]