20737620

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:292

約数の個数: 144

約数和(自身を含む): 69346368

約数和(自身を除く): 48608748

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 81, 85, 90, 102, 108, 135, 153, 162, 170, 180, 204, 243, 251, 255, 270, 306, 324, 340, 405, 459, 486, 502, 510, 540, 612, 753, 765, 810, 918, 972, 1004, 1020, 1215, 1255, 1377, 1506, 1530, 1620, 1836, 2259, 2295, 2430, 2510, 2754, 3012, 3060, 3765, 4131, 4267, 4518, 4590, 4860, 5020, 5508, 6777, 6885, 7530, 8262, 8534, 9036, 9180, 11295, 12801, 13554, 13770, 15060, 16524, 17068, 20331, 20655, 21335, 22590, 25602, 27108, 27540, 33885, 38403, 40662, 41310, 42670, 45180, 51204, 60993, 64005, 67770, 76806, 81324, 82620, 85340, 101655, 115209, 121986, 128010, 135540, 153612, 192015, 203310, 230418, 243972, 256020, 304965, 345627, 384030, 406620, 460836, 576045, 609930, 691254, 768060, 1036881, 1152090, 1219860, 1382508, 1728135, 2073762, 2304180, 3456270, 4147524, 5184405, 6912540, 10368810, 20737620]

約数ペア:

[(1, 20737620), (2, 10368810), (3, 6912540), (4, 5184405), (5, 4147524), (6, 3456270), (9, 2304180), (10, 2073762), (12, 1728135), (15, 1382508), (17, 1219860), (18, 1152090), (20, 1036881), (27, 768060), (30, 691254), (34, 609930), (36, 576045), (45, 460836), (51, 406620), (54, 384030), (60, 345627), (68, 304965), (81, 256020), (85, 243972), (90, 230418), (102, 203310), (108, 192015), (135, 153612), (153, 135540), (162, 128010), (170, 121986), (180, 115209), (204, 101655), (243, 85340), (251, 82620), (255, 81324), (270, 76806), (306, 67770), (324, 64005), (340, 60993), (405, 51204), (459, 45180), (486, 42670), (502, 41310), (510, 40662), (540, 38403), (612, 33885), (753, 27540), (765, 27108), (810, 25602), (918, 22590), (972, 21335), (1004, 20655), (1020, 20331), (1215, 17068), (1255, 16524), (1377, 15060), (1506, 13770), (1530, 13554), (1620, 12801), (1836, 11295), (2259, 9180), (2295, 9036), (2430, 8534), (2510, 8262), (2754, 7530), (3012, 6885), (3060, 6777), (3765, 5508), (4131, 5020), (4267, 4860), (4518, 4590)]