202540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:82

約数の個数: 48

約数和(自身を含む): 493920

約数和(自身を除く): 291380

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 41, 52, 65, 76, 82, 95, 130, 164, 190, 205, 247, 260, 380, 410, 494, 533, 779, 820, 988, 1066, 1235, 1558, 2132, 2470, 2665, 3116, 3895, 4940, 5330, 7790, 10127, 10660, 15580, 20254, 40508, 50635, 101270, 202540]

約数ペア:

[(1, 202540), (2, 101270), (4, 50635), (5, 40508), (10, 20254), (13, 15580), (19, 10660), (20, 10127), (26, 7790), (38, 5330), (41, 4940), (52, 3895), (65, 3116), (76, 2665), (82, 2470), (95, 2132), (130, 1558), (164, 1235), (190, 1066), (205, 988), (247, 820), (260, 779), (380, 533), (410, 494)]