20475300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{521}}^1$

素因数の和:669

約数の個数: 72

約数和(自身を含む): 59808672

約数和(自身を除く): 39333372

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 131, 150, 262, 300, 393, 521, 524, 655, 786, 1042, 1310, 1563, 1572, 1965, 2084, 2605, 2620, 3126, 3275, 3930, 5210, 6252, 6550, 7815, 7860, 9825, 10420, 13025, 13100, 15630, 19650, 26050, 31260, 39075, 39300, 52100, 68251, 78150, 136502, 156300, 204753, 273004, 341255, 409506, 682510, 819012, 1023765, 1365020, 1706275, 2047530, 3412550, 4095060, 5118825, 6825100, 10237650, 20475300]

約数ペア:

[(1, 20475300), (2, 10237650), (3, 6825100), (4, 5118825), (5, 4095060), (6, 3412550), (10, 2047530), (12, 1706275), (15, 1365020), (20, 1023765), (25, 819012), (30, 682510), (50, 409506), (60, 341255), (75, 273004), (100, 204753), (131, 156300), (150, 136502), (262, 78150), (300, 68251), (393, 52100), (521, 39300), (524, 39075), (655, 31260), (786, 26050), (1042, 19650), (1310, 15630), (1563, 13100), (1572, 13025), (1965, 10420), (2084, 9825), (2605, 7860), (2620, 7815), (3126, 6550), (3275, 6252), (3930, 5210)]