31500700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4091}}^1$

素因数の和:4123

約数の個数: 72

約数和(自身を含む): 85244544

約数和(自身を除く): 53743844

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1100, 1540, 1925, 3850, 4091, 7700, 8182, 16364, 20455, 28637, 40910, 45001, 57274, 81820, 90002, 102275, 114548, 143185, 180004, 204550, 225005, 286370, 315007, 409100, 450010, 572740, 630014, 715925, 900020, 1125025, 1260028, 1431850, 1575035, 2250050, 2863700, 3150070, 4500100, 6300140, 7875175, 15750350, 31500700]

約数ペア:

[(1, 31500700), (2, 15750350), (4, 7875175), (5, 6300140), (7, 4500100), (10, 3150070), (11, 2863700), (14, 2250050), (20, 1575035), (22, 1431850), (25, 1260028), (28, 1125025), (35, 900020), (44, 715925), (50, 630014), (55, 572740), (70, 450010), (77, 409100), (100, 315007), (110, 286370), (140, 225005), (154, 204550), (175, 180004), (220, 143185), (275, 114548), (308, 102275), (350, 90002), (385, 81820), (550, 57274), (700, 45001), (770, 40910), (1100, 28637), (1540, 20455), (1925, 16364), (3850, 8182), (4091, 7700)]