19545552

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:277

約数の個数: 120

約数和(自身を含む): 60324264

約数和(自身を除く): 40778712

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 53, 72, 78, 104, 106, 117, 144, 156, 159, 197, 208, 212, 234, 312, 318, 394, 424, 468, 477, 591, 624, 636, 689, 788, 848, 936, 954, 1182, 1272, 1378, 1576, 1773, 1872, 1908, 2067, 2364, 2544, 2561, 2756, 3152, 3546, 3816, 4134, 4728, 5122, 5512, 6201, 7092, 7632, 7683, 8268, 9456, 10244, 10441, 11024, 12402, 14184, 15366, 16536, 20488, 20882, 23049, 24804, 28368, 30732, 31323, 33072, 40976, 41764, 46098, 49608, 61464, 62646, 83528, 92196, 93969, 99216, 122928, 125292, 135733, 167056, 184392, 187938, 250584, 271466, 368784, 375876, 407199, 501168, 542932, 751752, 814398, 1085864, 1221597, 1503504, 1628796, 2171728, 2443194, 3257592, 4886388, 6515184, 9772776, 19545552]

約数ペア:

[(1, 19545552), (2, 9772776), (3, 6515184), (4, 4886388), (6, 3257592), (8, 2443194), (9, 2171728), (12, 1628796), (13, 1503504), (16, 1221597), (18, 1085864), (24, 814398), (26, 751752), (36, 542932), (39, 501168), (48, 407199), (52, 375876), (53, 368784), (72, 271466), (78, 250584), (104, 187938), (106, 184392), (117, 167056), (144, 135733), (156, 125292), (159, 122928), (197, 99216), (208, 93969), (212, 92196), (234, 83528), (312, 62646), (318, 61464), (394, 49608), (424, 46098), (468, 41764), (477, 40976), (591, 33072), (624, 31323), (636, 30732), (689, 28368), (788, 24804), (848, 23049), (936, 20882), (954, 20488), (1182, 16536), (1272, 15366), (1378, 14184), (1576, 12402), (1773, 11024), (1872, 10441), (1908, 10244), (2067, 9456), (2364, 8268), (2544, 7683), (2561, 7632), (2756, 7092), (3152, 6201), (3546, 5512), (3816, 5122), (4134, 4728)]