25721000

素因数分解:

$2^3\times 5^3\times {\mathrm{17}}^2\times {\mathrm{89}}^1$

素因数の和:144

約数の個数: 96

約数和(自身を含む): 64654200

約数和(自身を除く): 38933200

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 89, 100, 125, 136, 170, 178, 200, 250, 289, 340, 356, 425, 445, 500, 578, 680, 712, 850, 890, 1000, 1156, 1445, 1513, 1700, 1780, 2125, 2225, 2312, 2890, 3026, 3400, 3560, 4250, 4450, 5780, 6052, 7225, 7565, 8500, 8900, 11125, 11560, 12104, 14450, 15130, 17000, 17800, 22250, 25721, 28900, 30260, 36125, 37825, 44500, 51442, 57800, 60520, 72250, 75650, 89000, 102884, 128605, 144500, 151300, 189125, 205768, 257210, 289000, 302600, 378250, 514420, 643025, 756500, 1028840, 1286050, 1513000, 2572100, 3215125, 5144200, 6430250, 12860500, 25721000]

約数ペア:

[(1, 25721000), (2, 12860500), (4, 6430250), (5, 5144200), (8, 3215125), (10, 2572100), (17, 1513000), (20, 1286050), (25, 1028840), (34, 756500), (40, 643025), (50, 514420), (68, 378250), (85, 302600), (89, 289000), (100, 257210), (125, 205768), (136, 189125), (170, 151300), (178, 144500), (200, 128605), (250, 102884), (289, 89000), (340, 75650), (356, 72250), (425, 60520), (445, 57800), (500, 51442), (578, 44500), (680, 37825), (712, 36125), (850, 30260), (890, 28900), (1000, 25721), (1156, 22250), (1445, 17800), (1513, 17000), (1700, 15130), (1780, 14450), (2125, 12104), (2225, 11560), (2312, 11125), (2890, 8900), (3026, 8500), (3400, 7565), (3560, 7225), (4250, 6052), (4450, 5780)]