25109420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^2\times {\mathrm{97}}^1$

素因数の和:199

約数の個数: 72

約数和(自身を含む): 62332704

約数和(自身を除く): 37223284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 97, 140, 172, 194, 215, 301, 388, 430, 485, 602, 679, 860, 970, 1204, 1358, 1505, 1849, 1940, 2716, 3010, 3395, 3698, 4171, 6020, 6790, 7396, 8342, 9245, 12943, 13580, 16684, 18490, 20855, 25886, 29197, 36980, 41710, 51772, 58394, 64715, 83420, 116788, 129430, 145985, 179353, 258860, 291970, 358706, 583940, 717412, 896765, 1255471, 1793530, 2510942, 3587060, 5021884, 6277355, 12554710, 25109420]

約数ペア:

[(1, 25109420), (2, 12554710), (4, 6277355), (5, 5021884), (7, 3587060), (10, 2510942), (14, 1793530), (20, 1255471), (28, 896765), (35, 717412), (43, 583940), (70, 358706), (86, 291970), (97, 258860), (140, 179353), (172, 145985), (194, 129430), (215, 116788), (301, 83420), (388, 64715), (430, 58394), (485, 51772), (602, 41710), (679, 36980), (860, 29197), (970, 25886), (1204, 20855), (1358, 18490), (1505, 16684), (1849, 13580), (1940, 12943), (2716, 9245), (3010, 8342), (3395, 7396), (3698, 6790), (4171, 6020)]