16431980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{691}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 36620640

約数和(自身を除く): 20188660

約数列:

[1, 2, 4, 5, 10, 20, 29, 41, 58, 82, 116, 145, 164, 205, 290, 410, 580, 691, 820, 1189, 1382, 2378, 2764, 3455, 4756, 5945, 6910, 11890, 13820, 20039, 23780, 28331, 40078, 56662, 80156, 100195, 113324, 141655, 200390, 283310, 400780, 566620, 821599, 1643198, 3286396, 4107995, 8215990, 16431980]

約数ペア:

[(1, 16431980), (2, 8215990), (4, 4107995), (5, 3286396), (10, 1643198), (20, 821599), (29, 566620), (41, 400780), (58, 283310), (82, 200390), (116, 141655), (145, 113324), (164, 100195), (205, 80156), (290, 56662), (410, 40078), (580, 28331), (691, 23780), (820, 20039), (1189, 13820), (1382, 11890), (2378, 6910), (2764, 5945), (3455, 4756)]