28999300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{643}}^1$

素因数の和:709

約数の個数: 72

約数和(自身を含む): 70432992

約数和(自身を除く): 41433692

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 41, 44, 50, 55, 82, 100, 110, 164, 205, 220, 275, 410, 451, 550, 643, 820, 902, 1025, 1100, 1286, 1804, 2050, 2255, 2572, 3215, 4100, 4510, 6430, 7073, 9020, 11275, 12860, 14146, 16075, 22550, 26363, 28292, 32150, 35365, 45100, 52726, 64300, 70730, 105452, 131815, 141460, 176825, 263630, 289993, 353650, 527260, 579986, 659075, 707300, 1159972, 1318150, 1449965, 2636300, 2899930, 5799860, 7249825, 14499650, 28999300]

約数ペア:

[(1, 28999300), (2, 14499650), (4, 7249825), (5, 5799860), (10, 2899930), (11, 2636300), (20, 1449965), (22, 1318150), (25, 1159972), (41, 707300), (44, 659075), (50, 579986), (55, 527260), (82, 353650), (100, 289993), (110, 263630), (164, 176825), (205, 141460), (220, 131815), (275, 105452), (410, 70730), (451, 64300), (550, 52726), (643, 45100), (820, 35365), (902, 32150), (1025, 28292), (1100, 26363), (1286, 22550), (1804, 16075), (2050, 14146), (2255, 12860), (2572, 11275), (3215, 9020), (4100, 7073), (4510, 6430)]