30780

素因数分解:

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

素因数の和:40

約数の個数: 60

約数和(自身を含む): 101640

約数和(自身を除く): 70860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 270, 285, 324, 342, 380, 405, 513, 540, 570, 684, 810, 855, 1026, 1140, 1539, 1620, 1710, 2052, 2565, 3078, 3420, 5130, 6156, 7695, 10260, 15390, 30780]

約数ペア:

[(1, 30780), (2, 15390), (3, 10260), (4, 7695), (5, 6156), (6, 5130), (9, 3420), (10, 3078), (12, 2565), (15, 2052), (18, 1710), (19, 1620), (20, 1539), (27, 1140), (30, 1026), (36, 855), (38, 810), (45, 684), (54, 570), (57, 540), (60, 513), (76, 405), (81, 380), (90, 342), (95, 324), (108, 285), (114, 270), (135, 228), (162, 190), (171, 180)]