19210000

素因数分解:

$2^4\times 5^4\times {\mathrm{17}}^1\times {\mathrm{113}}^1$

素因数の和:158

約数の個数: 100

約数和(自身を含む): 49680972

約数和(自身を除く): 30470972

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 113, 125, 136, 170, 200, 226, 250, 272, 340, 400, 425, 452, 500, 565, 625, 680, 850, 904, 1000, 1130, 1250, 1360, 1700, 1808, 1921, 2000, 2125, 2260, 2500, 2825, 3400, 3842, 4250, 4520, 5000, 5650, 6800, 7684, 8500, 9040, 9605, 10000, 10625, 11300, 14125, 15368, 17000, 19210, 21250, 22600, 28250, 30736, 34000, 38420, 42500, 45200, 48025, 56500, 70625, 76840, 85000, 96050, 113000, 141250, 153680, 170000, 192100, 226000, 240125, 282500, 384200, 480250, 565000, 768400, 960500, 1130000, 1200625, 1921000, 2401250, 3842000, 4802500, 9605000, 19210000]

約数ペア:

[(1, 19210000), (2, 9605000), (4, 4802500), (5, 3842000), (8, 2401250), (10, 1921000), (16, 1200625), (17, 1130000), (20, 960500), (25, 768400), (34, 565000), (40, 480250), (50, 384200), (68, 282500), (80, 240125), (85, 226000), (100, 192100), (113, 170000), (125, 153680), (136, 141250), (170, 113000), (200, 96050), (226, 85000), (250, 76840), (272, 70625), (340, 56500), (400, 48025), (425, 45200), (452, 42500), (500, 38420), (565, 34000), (625, 30736), (680, 28250), (850, 22600), (904, 21250), (1000, 19210), (1130, 17000), (1250, 15368), (1360, 14125), (1700, 11300), (1808, 10625), (1921, 10000), (2000, 9605), (2125, 9040), (2260, 8500), (2500, 7684), (2825, 6800), (3400, 5650), (3842, 5000), (4250, 4520)]