38420000

素因数分解:

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

素因数の和:160

約数の個数: 120

約数和(自身を含む): 100964556

約数和(自身を除く): 62544556

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 68, 80, 85, 100, 113, 125, 136, 160, 170, 200, 226, 250, 272, 340, 400, 425, 452, 500, 544, 565, 625, 680, 800, 850, 904, 1000, 1130, 1250, 1360, 1700, 1808, 1921, 2000, 2125, 2260, 2500, 2720, 2825, 3400, 3616, 3842, 4000, 4250, 4520, 5000, 5650, 6800, 7684, 8500, 9040, 9605, 10000, 10625, 11300, 13600, 14125, 15368, 17000, 18080, 19210, 20000, 21250, 22600, 28250, 30736, 34000, 38420, 42500, 45200, 48025, 56500, 61472, 68000, 70625, 76840, 85000, 90400, 96050, 113000, 141250, 153680, 170000, 192100, 226000, 240125, 282500, 307360, 340000, 384200, 452000, 480250, 565000, 768400, 960500, 1130000, 1200625, 1536800, 1921000, 2260000, 2401250, 3842000, 4802500, 7684000, 9605000, 19210000, 38420000]

約数ペア:

[(1, 38420000), (2, 19210000), (4, 9605000), (5, 7684000), (8, 4802500), (10, 3842000), (16, 2401250), (17, 2260000), (20, 1921000), (25, 1536800), (32, 1200625), (34, 1130000), (40, 960500), (50, 768400), (68, 565000), (80, 480250), (85, 452000), (100, 384200), (113, 340000), (125, 307360), (136, 282500), (160, 240125), (170, 226000), (200, 192100), (226, 170000), (250, 153680), (272, 141250), (340, 113000), (400, 96050), (425, 90400), (452, 85000), (500, 76840), (544, 70625), (565, 68000), (625, 61472), (680, 56500), (800, 48025), (850, 45200), (904, 42500), (1000, 38420), (1130, 34000), (1250, 30736), (1360, 28250), (1700, 22600), (1808, 21250), (1921, 20000), (2000, 19210), (2125, 18080), (2260, 17000), (2500, 15368), (2720, 14125), (2825, 13600), (3400, 11300), (3616, 10625), (3842, 10000), (4000, 9605), (4250, 9040), (4520, 8500), (5000, 7684), (5650, 6800)]