405881008

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1307}}^1\times {\mathrm{1493}}^1$

素因数の和:2821

約数の個数: 40

約数和(自身を含む): 848101968

約数和(自身を除く): 442220960

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1307, 1493, 2614, 2986, 5228, 5972, 10456, 11944, 16991, 19409, 20912, 23888, 33982, 38818, 67964, 77636, 135928, 155272, 271856, 310544, 1951351, 3902702, 7805404, 15610808, 25367563, 31221616, 50735126, 101470252, 202940504, 405881008]

約数ペア:

[(1, 405881008), (2, 202940504), (4, 101470252), (8, 50735126), (13, 31221616), (16, 25367563), (26, 15610808), (52, 7805404), (104, 3902702), (208, 1951351), (1307, 310544), (1493, 271856), (2614, 155272), (2986, 135928), (5228, 77636), (5972, 67964), (10456, 38818), (11944, 33982), (16991, 23888), (19409, 20912)]