201875000

素因数分解:

$2^3\times 5^7\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:77

約数の個数: 128

約数和(自身を含む): 527342400

約数和(自身を除く): 325467400

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 25, 34, 38, 40, 50, 68, 76, 85, 95, 100, 125, 136, 152, 170, 190, 200, 250, 323, 340, 380, 425, 475, 500, 625, 646, 680, 760, 850, 950, 1000, 1250, 1292, 1615, 1700, 1900, 2125, 2375, 2500, 2584, 3125, 3230, 3400, 3800, 4250, 4750, 5000, 6250, 6460, 8075, 8500, 9500, 10625, 11875, 12500, 12920, 15625, 16150, 17000, 19000, 21250, 23750, 25000, 31250, 32300, 40375, 42500, 47500, 53125, 59375, 62500, 64600, 78125, 80750, 85000, 95000, 106250, 118750, 125000, 156250, 161500, 201875, 212500, 237500, 265625, 296875, 312500, 323000, 403750, 425000, 475000, 531250, 593750, 625000, 807500, 1009375, 1062500, 1187500, 1328125, 1484375, 1615000, 2018750, 2125000, 2375000, 2656250, 2968750, 4037500, 5046875, 5312500, 5937500, 8075000, 10093750, 10625000, 11875000, 20187500, 25234375, 40375000, 50468750, 100937500, 201875000]

約数ペア:

[(1, 201875000), (2, 100937500), (4, 50468750), (5, 40375000), (8, 25234375), (10, 20187500), (17, 11875000), (19, 10625000), (20, 10093750), (25, 8075000), (34, 5937500), (38, 5312500), (40, 5046875), (50, 4037500), (68, 2968750), (76, 2656250), (85, 2375000), (95, 2125000), (100, 2018750), (125, 1615000), (136, 1484375), (152, 1328125), (170, 1187500), (190, 1062500), (200, 1009375), (250, 807500), (323, 625000), (340, 593750), (380, 531250), (425, 475000), (475, 425000), (500, 403750), (625, 323000), (646, 312500), (680, 296875), (760, 265625), (850, 237500), (950, 212500), (1000, 201875), (1250, 161500), (1292, 156250), (1615, 125000), (1700, 118750), (1900, 106250), (2125, 95000), (2375, 85000), (2500, 80750), (2584, 78125), (3125, 64600), (3230, 62500), (3400, 59375), (3800, 53125), (4250, 47500), (4750, 42500), (5000, 40375), (6250, 32300), (6460, 31250), (8075, 25000), (8500, 23750), (9500, 21250), (10625, 19000), (11875, 17000), (12500, 16150), (12920, 15625)]