20120971755

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{5119}}^1$

素因数の和:5344

約数の個数: 64

約数和(自身を含む): 33973862400

約数和(自身を除く): 13852890645

約数列:

[1, 3, 5, 15, 31, 79, 93, 107, 155, 237, 321, 395, 465, 535, 1185, 1605, 2449, 3317, 5119, 7347, 8453, 9951, 12245, 15357, 16585, 25359, 25595, 36735, 42265, 49755, 76785, 126795, 158689, 262043, 404401, 476067, 547733, 786129, 793445, 1213203, 1310215, 1643199, 2022005, 2380335, 2738665, 3930645, 6066015, 8215995, 12536431, 16979723, 37609293, 43270907, 50939169, 62682155, 84898615, 129812721, 188046465, 216354535, 254695845, 649063605, 1341398117, 4024194351, 6706990585, 20120971755]

約数ペア:

[(1, 20120971755), (3, 6706990585), (5, 4024194351), (15, 1341398117), (31, 649063605), (79, 254695845), (93, 216354535), (107, 188046465), (155, 129812721), (237, 84898615), (321, 62682155), (395, 50939169), (465, 43270907), (535, 37609293), (1185, 16979723), (1605, 12536431), (2449, 8215995), (3317, 6066015), (5119, 3930645), (7347, 2738665), (8453, 2380335), (9951, 2022005), (12245, 1643199), (15357, 1310215), (16585, 1213203), (25359, 793445), (25595, 786129), (36735, 547733), (42265, 476067), (49755, 404401), (76785, 262043), (126795, 158689)]