51720228

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^2$

素因数の和:143

約数の個数: 144

約数和(自身を含む): 161132160

約数和(自身を除く): 109411932

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 37, 42, 43, 54, 63, 74, 84, 86, 108, 111, 126, 129, 148, 172, 189, 222, 252, 258, 259, 301, 333, 378, 387, 444, 516, 518, 602, 666, 756, 774, 777, 903, 999, 1036, 1161, 1204, 1332, 1548, 1554, 1591, 1806, 1849, 1998, 2322, 2331, 2709, 3108, 3182, 3612, 3698, 3996, 4644, 4662, 4773, 5418, 5547, 6364, 6993, 7396, 8127, 9324, 9546, 10836, 11094, 11137, 12943, 13986, 14319, 16254, 16641, 19092, 22188, 22274, 25886, 27972, 28638, 32508, 33282, 33411, 38829, 42957, 44548, 49923, 51772, 57276, 66564, 66822, 68413, 77658, 85914, 99846, 100233, 116487, 133644, 136826, 155316, 171828, 199692, 200466, 205239, 232974, 273652, 300699, 349461, 400932, 410478, 465948, 478891, 601398, 615717, 698922, 820956, 957782, 1202796, 1231434, 1397844, 1436673, 1847151, 1915564, 2462868, 2873346, 3694302, 4310019, 5746692, 7388604, 8620038, 12930057, 17240076, 25860114, 51720228]

約数ペア:

[(1, 51720228), (2, 25860114), (3, 17240076), (4, 12930057), (6, 8620038), (7, 7388604), (9, 5746692), (12, 4310019), (14, 3694302), (18, 2873346), (21, 2462868), (27, 1915564), (28, 1847151), (36, 1436673), (37, 1397844), (42, 1231434), (43, 1202796), (54, 957782), (63, 820956), (74, 698922), (84, 615717), (86, 601398), (108, 478891), (111, 465948), (126, 410478), (129, 400932), (148, 349461), (172, 300699), (189, 273652), (222, 232974), (252, 205239), (258, 200466), (259, 199692), (301, 171828), (333, 155316), (378, 136826), (387, 133644), (444, 116487), (516, 100233), (518, 99846), (602, 85914), (666, 77658), (756, 68413), (774, 66822), (777, 66564), (903, 57276), (999, 51772), (1036, 49923), (1161, 44548), (1204, 42957), (1332, 38829), (1548, 33411), (1554, 33282), (1591, 32508), (1806, 28638), (1849, 27972), (1998, 25886), (2322, 22274), (2331, 22188), (2709, 19092), (3108, 16641), (3182, 16254), (3612, 14319), (3698, 13986), (3996, 12943), (4644, 11137), (4662, 11094), (4773, 10836), (5418, 9546), (5547, 9324), (6364, 8127), (6993, 7396)]