19947060

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{1759}}^1$

素因数の和:1787

約数の個数: 120

約数和(自身を含む): 71554560

約数和(自身を除く): 51607500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1759, 1890, 2268, 2835, 3518, 3780, 5277, 5670, 7036, 8795, 10554, 11340, 12313, 15831, 17590, 21108, 24626, 26385, 31662, 35180, 36939, 47493, 49252, 52770, 61565, 63324, 73878, 79155, 94986, 105540, 110817, 123130, 142479, 147756, 158310, 184695, 189972, 221634, 237465, 246260, 284958, 316620, 332451, 369390, 443268, 474930, 554085, 569916, 664902, 712395, 738780, 949860, 997353, 1108170, 1329804, 1424790, 1662255, 1994706, 2216340, 2849580, 3324510, 3989412, 4986765, 6649020, 9973530, 19947060]

約数ペア:

[(1, 19947060), (2, 9973530), (3, 6649020), (4, 4986765), (5, 3989412), (6, 3324510), (7, 2849580), (9, 2216340), (10, 1994706), (12, 1662255), (14, 1424790), (15, 1329804), (18, 1108170), (20, 997353), (21, 949860), (27, 738780), (28, 712395), (30, 664902), (35, 569916), (36, 554085), (42, 474930), (45, 443268), (54, 369390), (60, 332451), (63, 316620), (70, 284958), (81, 246260), (84, 237465), (90, 221634), (105, 189972), (108, 184695), (126, 158310), (135, 147756), (140, 142479), (162, 123130), (180, 110817), (189, 105540), (210, 94986), (252, 79155), (270, 73878), (315, 63324), (324, 61565), (378, 52770), (405, 49252), (420, 47493), (540, 36939), (567, 35180), (630, 31662), (756, 26385), (810, 24626), (945, 21108), (1134, 17590), (1260, 15831), (1620, 12313), (1759, 11340), (1890, 10554), (2268, 8795), (2835, 7036), (3518, 5670), (3780, 5277)]