205425180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{380417}}^1$

素因数の和:380435

約数の個数: 48

約数和(自身を含む): 639102240

約数和(自身を除く): 433677060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 380417, 760834, 1141251, 1521668, 1902085, 2282502, 3423753, 3804170, 4565004, 5706255, 6847506, 7608340, 10271259, 11412510, 13695012, 17118765, 20542518, 22825020, 34237530, 41085036, 51356295, 68475060, 102712590, 205425180]

約数ペア:

[(1, 205425180), (2, 102712590), (3, 68475060), (4, 51356295), (5, 41085036), (6, 34237530), (9, 22825020), (10, 20542518), (12, 17118765), (15, 13695012), (18, 11412510), (20, 10271259), (27, 7608340), (30, 6847506), (36, 5706255), (45, 4565004), (54, 3804170), (60, 3423753), (90, 2282502), (108, 1902085), (135, 1521668), (180, 1141251), (270, 760834), (540, 380417)]