19935720

素因数分解:

$2^3\times 3^5\times 5^1\times 7^1\times {\mathrm{293}}^1$

素因数の和:326

約数の個数: 192

約数和(自身を含む): 77051520

約数和(自身を除く): 57115800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 243, 252, 270, 280, 293, 315, 324, 360, 378, 405, 420, 486, 504, 540, 567, 586, 630, 648, 756, 810, 840, 879, 945, 972, 1080, 1134, 1172, 1215, 1260, 1465, 1512, 1620, 1701, 1758, 1890, 1944, 2051, 2268, 2344, 2430, 2520, 2637, 2835, 2930, 3240, 3402, 3516, 3780, 4102, 4395, 4536, 4860, 5274, 5670, 5860, 6153, 6804, 7032, 7560, 7911, 8204, 8505, 8790, 9720, 10255, 10548, 11340, 11720, 12306, 13185, 13608, 15822, 16408, 17010, 17580, 18459, 20510, 21096, 22680, 23733, 24612, 26370, 30765, 31644, 34020, 35160, 36918, 39555, 41020, 47466, 49224, 52740, 55377, 61530, 63288, 68040, 71199, 73836, 79110, 82040, 92295, 94932, 105480, 110754, 118665, 123060, 142398, 147672, 158220, 166131, 184590, 189864, 221508, 237330, 246120, 276885, 284796, 316440, 332262, 355995, 369180, 443016, 474660, 498393, 553770, 569592, 664524, 711990, 738360, 830655, 949320, 996786, 1107540, 1329048, 1423980, 1661310, 1993572, 2215080, 2491965, 2847960, 3322620, 3987144, 4983930, 6645240, 9967860, 19935720]

約数ペア:

[(1, 19935720), (2, 9967860), (3, 6645240), (4, 4983930), (5, 3987144), (6, 3322620), (7, 2847960), (8, 2491965), (9, 2215080), (10, 1993572), (12, 1661310), (14, 1423980), (15, 1329048), (18, 1107540), (20, 996786), (21, 949320), (24, 830655), (27, 738360), (28, 711990), (30, 664524), (35, 569592), (36, 553770), (40, 498393), (42, 474660), (45, 443016), (54, 369180), (56, 355995), (60, 332262), (63, 316440), (70, 284796), (72, 276885), (81, 246120), (84, 237330), (90, 221508), (105, 189864), (108, 184590), (120, 166131), (126, 158220), (135, 147672), (140, 142398), (162, 123060), (168, 118665), (180, 110754), (189, 105480), (210, 94932), (216, 92295), (243, 82040), (252, 79110), (270, 73836), (280, 71199), (293, 68040), (315, 63288), (324, 61530), (360, 55377), (378, 52740), (405, 49224), (420, 47466), (486, 41020), (504, 39555), (540, 36918), (567, 35160), (586, 34020), (630, 31644), (648, 30765), (756, 26370), (810, 24612), (840, 23733), (879, 22680), (945, 21096), (972, 20510), (1080, 18459), (1134, 17580), (1172, 17010), (1215, 16408), (1260, 15822), (1465, 13608), (1512, 13185), (1620, 12306), (1701, 11720), (1758, 11340), (1890, 10548), (1944, 10255), (2051, 9720), (2268, 8790), (2344, 8505), (2430, 8204), (2520, 7911), (2637, 7560), (2835, 7032), (2930, 6804), (3240, 6153), (3402, 5860), (3516, 5670), (3780, 5274), (4102, 4860), (4395, 4536)]