16860220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3413}}^1$

素因数の和:3454

約数の個数: 48

約数和(自身を含む): 40148640

約数和(自身を除く): 23288420

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 3413, 4940, 6826, 13652, 17065, 34130, 44369, 64847, 68260, 88738, 129694, 177476, 221845, 259388, 324235, 443690, 648470, 843011, 887380, 1296940, 1686022, 3372044, 4215055, 8430110, 16860220]

約数ペア:

[(1, 16860220), (2, 8430110), (4, 4215055), (5, 3372044), (10, 1686022), (13, 1296940), (19, 887380), (20, 843011), (26, 648470), (38, 443690), (52, 324235), (65, 259388), (76, 221845), (95, 177476), (130, 129694), (190, 88738), (247, 68260), (260, 64847), (380, 44369), (494, 34130), (988, 17065), (1235, 13652), (2470, 6826), (3413, 4940)]