1398780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1$

素因数の和:443

約数の個数: 72

約数和(自身を含む): 4477200

約数和(自身を除く): 3078420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 409, 570, 684, 818, 855, 1140, 1227, 1636, 1710, 2045, 2454, 3420, 3681, 4090, 4908, 6135, 7362, 7771, 8180, 12270, 14724, 15542, 18405, 23313, 24540, 31084, 36810, 38855, 46626, 69939, 73620, 77710, 93252, 116565, 139878, 155420, 233130, 279756, 349695, 466260, 699390, 1398780]

約数ペア:

[(1, 1398780), (2, 699390), (3, 466260), (4, 349695), (5, 279756), (6, 233130), (9, 155420), (10, 139878), (12, 116565), (15, 93252), (18, 77710), (19, 73620), (20, 69939), (30, 46626), (36, 38855), (38, 36810), (45, 31084), (57, 24540), (60, 23313), (76, 18405), (90, 15542), (95, 14724), (114, 12270), (171, 8180), (180, 7771), (190, 7362), (228, 6135), (285, 4908), (342, 4090), (380, 3681), (409, 3420), (570, 2454), (684, 2045), (818, 1710), (855, 1636), (1140, 1227)]