661770

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:81

約数の個数: 80

約数和(自身を含む): 1916640

約数和(自身を除く): 1254870

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 43, 45, 54, 57, 81, 86, 90, 95, 114, 129, 135, 162, 171, 190, 215, 258, 270, 285, 342, 387, 405, 430, 513, 570, 645, 774, 810, 817, 855, 1026, 1161, 1290, 1539, 1634, 1710, 1935, 2322, 2451, 2565, 3078, 3483, 3870, 4085, 4902, 5130, 5805, 6966, 7353, 7695, 8170, 11610, 12255, 14706, 15390, 17415, 22059, 24510, 34830, 36765, 44118, 66177, 73530, 110295, 132354, 220590, 330885, 661770]

約数ペア:

[(1, 661770), (2, 330885), (3, 220590), (5, 132354), (6, 110295), (9, 73530), (10, 66177), (15, 44118), (18, 36765), (19, 34830), (27, 24510), (30, 22059), (38, 17415), (43, 15390), (45, 14706), (54, 12255), (57, 11610), (81, 8170), (86, 7695), (90, 7353), (95, 6966), (114, 5805), (129, 5130), (135, 4902), (162, 4085), (171, 3870), (190, 3483), (215, 3078), (258, 2565), (270, 2451), (285, 2322), (342, 1935), (387, 1710), (405, 1634), (430, 1539), (513, 1290), (570, 1161), (645, 1026), (774, 855), (810, 817)]