20156254804

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{271}}^1\times {\mathrm{557}}^1$

素因数の和:1109

約数の個数: 96

約数和(自身を含む): 42837258240

約数和(自身を除く): 22681003436

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 251, 266, 271, 502, 532, 542, 557, 1004, 1084, 1114, 1757, 1897, 2228, 3514, 3794, 3899, 4769, 5149, 7028, 7588, 7798, 9538, 10298, 10583, 15596, 19076, 20596, 21166, 33383, 36043, 42332, 66766, 68021, 72086, 74081, 133532, 136042, 139807, 144172, 148162, 150947, 272084, 279614, 296324, 301894, 476147, 559228, 603788, 952294, 978649, 1056629, 1292399, 1904588, 1957298, 2113258, 2584798, 2656333, 2867993, 3914596, 4226516, 5169596, 5312666, 5735986, 9046793, 10625332, 11471972, 18093586, 18594331, 20075951, 36187172, 37188662, 37887697, 40151902, 74377324, 75775394, 80303804, 151550788, 265213879, 530427758, 719866243, 1060855516, 1439732486, 2879464972, 5039063701, 10078127402, 20156254804]

約数ペア:

[(1, 20156254804), (2, 10078127402), (4, 5039063701), (7, 2879464972), (14, 1439732486), (19, 1060855516), (28, 719866243), (38, 530427758), (76, 265213879), (133, 151550788), (251, 80303804), (266, 75775394), (271, 74377324), (502, 40151902), (532, 37887697), (542, 37188662), (557, 36187172), (1004, 20075951), (1084, 18594331), (1114, 18093586), (1757, 11471972), (1897, 10625332), (2228, 9046793), (3514, 5735986), (3794, 5312666), (3899, 5169596), (4769, 4226516), (5149, 3914596), (7028, 2867993), (7588, 2656333), (7798, 2584798), (9538, 2113258), (10298, 1957298), (10583, 1904588), (15596, 1292399), (19076, 1056629), (20596, 978649), (21166, 952294), (33383, 603788), (36043, 559228), (42332, 476147), (66766, 301894), (68021, 296324), (72086, 279614), (74081, 272084), (133532, 150947), (136042, 148162), (139807, 144172)]