20338968

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:161

約数の個数: 128

約数和(自身を含む): 59673600

約数和(自身を除く): 39334632

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 47, 52, 57, 73, 76, 78, 94, 104, 114, 141, 146, 152, 156, 188, 219, 228, 247, 282, 292, 312, 376, 438, 456, 494, 564, 584, 611, 741, 876, 893, 949, 988, 1128, 1222, 1387, 1482, 1752, 1786, 1833, 1898, 1976, 2444, 2679, 2774, 2847, 2964, 3431, 3572, 3666, 3796, 4161, 4888, 5358, 5548, 5694, 5928, 6862, 7144, 7332, 7592, 8322, 10293, 10716, 11096, 11388, 11609, 13724, 14664, 16644, 18031, 20586, 21432, 22776, 23218, 27448, 33288, 34827, 36062, 41172, 44603, 46436, 54093, 65189, 69654, 72124, 82344, 89206, 92872, 108186, 130378, 133809, 139308, 144248, 178412, 195567, 216372, 260756, 267618, 278616, 356824, 391134, 432744, 521512, 535236, 782268, 847457, 1070472, 1564536, 1694914, 2542371, 3389828, 5084742, 6779656, 10169484, 20338968]

約数ペア:

[(1, 20338968), (2, 10169484), (3, 6779656), (4, 5084742), (6, 3389828), (8, 2542371), (12, 1694914), (13, 1564536), (19, 1070472), (24, 847457), (26, 782268), (38, 535236), (39, 521512), (47, 432744), (52, 391134), (57, 356824), (73, 278616), (76, 267618), (78, 260756), (94, 216372), (104, 195567), (114, 178412), (141, 144248), (146, 139308), (152, 133809), (156, 130378), (188, 108186), (219, 92872), (228, 89206), (247, 82344), (282, 72124), (292, 69654), (312, 65189), (376, 54093), (438, 46436), (456, 44603), (494, 41172), (564, 36062), (584, 34827), (611, 33288), (741, 27448), (876, 23218), (893, 22776), (949, 21432), (988, 20586), (1128, 18031), (1222, 16644), (1387, 14664), (1482, 13724), (1752, 11609), (1786, 11388), (1833, 11096), (1898, 10716), (1976, 10293), (2444, 8322), (2679, 7592), (2774, 7332), (2847, 7144), (2964, 6862), (3431, 5928), (3572, 5694), (3666, 5548), (3796, 5358), (4161, 4888)]