20515014770

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:528

約数の個数: 96

約数和(自身を含む): 39194679168

約数和(自身を除く): 18679664398

約数列:

[1, 2, 5, 10, 31, 62, 71, 107, 142, 155, 214, 281, 310, 355, 535, 562, 710, 961, 1070, 1405, 1922, 2201, 2810, 3317, 4402, 4805, 6634, 7597, 8711, 9610, 11005, 15194, 16585, 17422, 19951, 22010, 30067, 33170, 37985, 39902, 43555, 60134, 68231, 75970, 87110, 99755, 102827, 136462, 150335, 199510, 205654, 235507, 270041, 300670, 341155, 471014, 514135, 540082, 618481, 682310, 932077, 1028270, 1177535, 1236962, 1350205, 1864154, 2134757, 2355070, 2700410, 3092405, 4269514, 4660385, 6184810, 7300717, 9320770, 10673785, 14601434, 19172911, 21347570, 28894387, 36503585, 38345822, 57788774, 66177467, 73007170, 95864555, 132354934, 144471935, 191729110, 288943870, 330887335, 661774670, 2051501477, 4103002954, 10257507385, 20515014770]

約数ペア:

[(1, 20515014770), (2, 10257507385), (5, 4103002954), (10, 2051501477), (31, 661774670), (62, 330887335), (71, 288943870), (107, 191729110), (142, 144471935), (155, 132354934), (214, 95864555), (281, 73007170), (310, 66177467), (355, 57788774), (535, 38345822), (562, 36503585), (710, 28894387), (961, 21347570), (1070, 19172911), (1405, 14601434), (1922, 10673785), (2201, 9320770), (2810, 7300717), (3317, 6184810), (4402, 4660385), (4805, 4269514), (6634, 3092405), (7597, 2700410), (8711, 2355070), (9610, 2134757), (11005, 1864154), (15194, 1350205), (16585, 1236962), (17422, 1177535), (19951, 1028270), (22010, 932077), (30067, 682310), (33170, 618481), (37985, 540082), (39902, 514135), (43555, 471014), (60134, 341155), (68231, 300670), (75970, 270041), (87110, 235507), (99755, 205654), (102827, 199510), (136462, 150335)]