28303540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{353}}^1$

素因数の和:592

約数の個数: 48

約数和(自身を含む): 63040320

約数和(自身を除く): 34736780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 211, 353, 380, 422, 706, 844, 1055, 1412, 1765, 2110, 3530, 4009, 4220, 6707, 7060, 8018, 13414, 16036, 20045, 26828, 33535, 40090, 67070, 74483, 80180, 134140, 148966, 297932, 372415, 744830, 1415177, 1489660, 2830354, 5660708, 7075885, 14151770, 28303540]

約数ペア:

[(1, 28303540), (2, 14151770), (4, 7075885), (5, 5660708), (10, 2830354), (19, 1489660), (20, 1415177), (38, 744830), (76, 372415), (95, 297932), (190, 148966), (211, 134140), (353, 80180), (380, 74483), (422, 67070), (706, 40090), (844, 33535), (1055, 26828), (1412, 20045), (1765, 16036), (2110, 13414), (3530, 8018), (4009, 7060), (4220, 6707)]