200450000

素因数分解:

$2^4\times 5^5\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:263

約数の個数: 120

約数和(自身を含む): 513404640

約数和(自身を除く): 312954640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 125, 152, 190, 200, 211, 250, 304, 380, 400, 422, 475, 500, 625, 760, 844, 950, 1000, 1055, 1250, 1520, 1688, 1900, 2000, 2110, 2375, 2500, 3125, 3376, 3800, 4009, 4220, 4750, 5000, 5275, 6250, 7600, 8018, 8440, 9500, 10000, 10550, 11875, 12500, 16036, 16880, 19000, 20045, 21100, 23750, 25000, 26375, 32072, 38000, 40090, 42200, 47500, 50000, 52750, 59375, 64144, 80180, 84400, 95000, 100225, 105500, 118750, 131875, 160360, 190000, 200450, 211000, 237500, 263750, 320720, 400900, 422000, 475000, 501125, 527500, 659375, 801800, 950000, 1002250, 1055000, 1318750, 1603600, 2004500, 2110000, 2505625, 2637500, 4009000, 5011250, 5275000, 8018000, 10022500, 10550000, 12528125, 20045000, 25056250, 40090000, 50112500, 100225000, 200450000]

約数ペア:

[(1, 200450000), (2, 100225000), (4, 50112500), (5, 40090000), (8, 25056250), (10, 20045000), (16, 12528125), (19, 10550000), (20, 10022500), (25, 8018000), (38, 5275000), (40, 5011250), (50, 4009000), (76, 2637500), (80, 2505625), (95, 2110000), (100, 2004500), (125, 1603600), (152, 1318750), (190, 1055000), (200, 1002250), (211, 950000), (250, 801800), (304, 659375), (380, 527500), (400, 501125), (422, 475000), (475, 422000), (500, 400900), (625, 320720), (760, 263750), (844, 237500), (950, 211000), (1000, 200450), (1055, 190000), (1250, 160360), (1520, 131875), (1688, 118750), (1900, 105500), (2000, 100225), (2110, 95000), (2375, 84400), (2500, 80180), (3125, 64144), (3376, 59375), (3800, 52750), (4009, 50000), (4220, 47500), (4750, 42200), (5000, 40090), (5275, 38000), (6250, 32072), (7600, 26375), (8018, 25000), (8440, 23750), (9500, 21100), (10000, 20045), (10550, 19000), (11875, 16880), (12500, 16036)]