16428520

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{6733}}^1$

素因数の和:6805

約数の個数: 32

約数和(自身を含む): 37575720

約数和(自身を除く): 21147200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 6733, 13466, 26932, 33665, 53864, 67330, 134660, 269320, 410713, 821426, 1642852, 2053565, 3285704, 4107130, 8214260, 16428520]

約数ペア:

[(1, 16428520), (2, 8214260), (4, 4107130), (5, 3285704), (8, 2053565), (10, 1642852), (20, 821426), (40, 410713), (61, 269320), (122, 134660), (244, 67330), (305, 53864), (488, 33665), (610, 26932), (1220, 13466), (2440, 6733)]