19720272

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{17}}^1$

素因数の和:78

約数の個数: 160

約数和(自身を含む): 63745920

約数和(自身を除く): 44025648

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 16, 17, 22, 24, 26, 33, 34, 39, 44, 48, 51, 52, 66, 68, 78, 88, 102, 104, 132, 136, 143, 156, 169, 176, 187, 204, 208, 221, 264, 272, 286, 312, 338, 374, 408, 429, 442, 507, 528, 561, 572, 624, 663, 676, 748, 816, 858, 884, 1014, 1122, 1144, 1326, 1352, 1496, 1716, 1768, 1859, 2028, 2197, 2244, 2288, 2431, 2652, 2704, 2873, 2992, 3432, 3536, 3718, 4056, 4394, 4488, 4862, 5304, 5577, 5746, 6591, 6864, 7293, 7436, 8112, 8619, 8788, 8976, 9724, 10608, 11154, 11492, 13182, 14586, 14872, 17238, 17576, 19448, 22308, 22984, 24167, 26364, 29172, 29744, 31603, 34476, 35152, 37349, 38896, 44616, 45968, 48334, 52728, 58344, 63206, 68952, 72501, 74698, 89232, 94809, 96668, 105456, 112047, 116688, 126412, 137904, 145002, 149396, 189618, 193336, 224094, 252824, 290004, 298792, 379236, 386672, 410839, 448188, 505648, 580008, 597584, 758472, 821678, 896376, 1160016, 1232517, 1516944, 1643356, 1792752, 2465034, 3286712, 4930068, 6573424, 9860136, 19720272]

約数ペア:

[(1, 19720272), (2, 9860136), (3, 6573424), (4, 4930068), (6, 3286712), (8, 2465034), (11, 1792752), (12, 1643356), (13, 1516944), (16, 1232517), (17, 1160016), (22, 896376), (24, 821678), (26, 758472), (33, 597584), (34, 580008), (39, 505648), (44, 448188), (48, 410839), (51, 386672), (52, 379236), (66, 298792), (68, 290004), (78, 252824), (88, 224094), (102, 193336), (104, 189618), (132, 149396), (136, 145002), (143, 137904), (156, 126412), (169, 116688), (176, 112047), (187, 105456), (204, 96668), (208, 94809), (221, 89232), (264, 74698), (272, 72501), (286, 68952), (312, 63206), (338, 58344), (374, 52728), (408, 48334), (429, 45968), (442, 44616), (507, 38896), (528, 37349), (561, 35152), (572, 34476), (624, 31603), (663, 29744), (676, 29172), (748, 26364), (816, 24167), (858, 22984), (884, 22308), (1014, 19448), (1122, 17576), (1144, 17238), (1326, 14872), (1352, 14586), (1496, 13182), (1716, 11492), (1768, 11154), (1859, 10608), (2028, 9724), (2197, 8976), (2244, 8788), (2288, 8619), (2431, 8112), (2652, 7436), (2704, 7293), (2873, 6864), (2992, 6591), (3432, 5746), (3536, 5577), (3718, 5304), (4056, 4862), (4394, 4488)]