220320255

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{593}}^1$

素因数の和:696

約数の個数: 64

約数和(自身を含む): 394149888

約数和(自身を除く): 173829633

約数列:

[1, 3, 5, 15, 17, 31, 47, 51, 85, 93, 141, 155, 235, 255, 465, 527, 593, 705, 799, 1457, 1581, 1779, 2397, 2635, 2965, 3995, 4371, 7285, 7905, 8895, 10081, 11985, 18383, 21855, 24769, 27871, 30243, 50405, 55149, 74307, 83613, 91915, 123845, 139355, 151215, 275745, 312511, 371535, 418065, 473807, 864001, 937533, 1421421, 1562555, 2369035, 2592003, 4320005, 4687665, 7107105, 12960015, 14688017, 44064051, 73440085, 220320255]

約数ペア:

[(1, 220320255), (3, 73440085), (5, 44064051), (15, 14688017), (17, 12960015), (31, 7107105), (47, 4687665), (51, 4320005), (85, 2592003), (93, 2369035), (141, 1562555), (155, 1421421), (235, 937533), (255, 864001), (465, 473807), (527, 418065), (593, 371535), (705, 312511), (799, 275745), (1457, 151215), (1581, 139355), (1779, 123845), (2397, 91915), (2635, 83613), (2965, 74307), (3995, 55149), (4371, 50405), (7285, 30243), (7905, 27871), (8895, 24769), (10081, 21855), (11985, 18383)]