81138512

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1$

素因数の和:473

約数の個数: 120

約数和(自身を含む): 207799200

約数和(自身を除く): 126660688

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 38, 49, 52, 56, 76, 91, 98, 104, 112, 133, 152, 182, 196, 208, 247, 266, 304, 364, 392, 419, 494, 532, 637, 728, 784, 838, 931, 988, 1064, 1274, 1456, 1676, 1729, 1862, 1976, 2128, 2548, 2933, 3352, 3458, 3724, 3952, 5096, 5447, 5866, 6704, 6916, 7448, 7961, 10192, 10894, 11732, 12103, 13832, 14896, 15922, 20531, 21788, 23464, 24206, 27664, 31844, 38129, 41062, 43576, 46928, 48412, 55727, 63688, 76258, 82124, 87152, 96824, 103493, 111454, 127376, 152516, 164248, 193648, 206986, 222908, 266903, 305032, 328496, 390089, 413972, 445816, 533806, 610064, 724451, 780178, 827944, 891632, 1067612, 1448902, 1560356, 1655888, 2135224, 2897804, 3120712, 4270448, 5071157, 5795608, 6241424, 10142314, 11591216, 20284628, 40569256, 81138512]

約数ペア:

[(1, 81138512), (2, 40569256), (4, 20284628), (7, 11591216), (8, 10142314), (13, 6241424), (14, 5795608), (16, 5071157), (19, 4270448), (26, 3120712), (28, 2897804), (38, 2135224), (49, 1655888), (52, 1560356), (56, 1448902), (76, 1067612), (91, 891632), (98, 827944), (104, 780178), (112, 724451), (133, 610064), (152, 533806), (182, 445816), (196, 413972), (208, 390089), (247, 328496), (266, 305032), (304, 266903), (364, 222908), (392, 206986), (419, 193648), (494, 164248), (532, 152516), (637, 127376), (728, 111454), (784, 103493), (838, 96824), (931, 87152), (988, 82124), (1064, 76258), (1274, 63688), (1456, 55727), (1676, 48412), (1729, 46928), (1862, 43576), (1976, 41062), (2128, 38129), (2548, 31844), (2933, 27664), (3352, 24206), (3458, 23464), (3724, 21788), (3952, 20531), (5096, 15922), (5447, 14896), (5866, 13832), (6704, 12103), (6916, 11732), (7448, 10894), (7961, 10192)]