28157980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1493}}^1$

素因数の和:1566

約数の個数: 48

約数和(自身を含む): 63249984

約数和(自身を除く): 35092004

約数列:

[1, 2, 4, 5, 10, 20, 23, 41, 46, 82, 92, 115, 164, 205, 230, 410, 460, 820, 943, 1493, 1886, 2986, 3772, 4715, 5972, 7465, 9430, 14930, 18860, 29860, 34339, 61213, 68678, 122426, 137356, 171695, 244852, 306065, 343390, 612130, 686780, 1224260, 1407899, 2815798, 5631596, 7039495, 14078990, 28157980]

約数ペア:

[(1, 28157980), (2, 14078990), (4, 7039495), (5, 5631596), (10, 2815798), (20, 1407899), (23, 1224260), (41, 686780), (46, 612130), (82, 343390), (92, 306065), (115, 244852), (164, 171695), (205, 137356), (230, 122426), (410, 68678), (460, 61213), (820, 34339), (943, 29860), (1493, 18860), (1886, 14930), (2986, 9430), (3772, 7465), (4715, 5972)]