15980216

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{653}}^1$

素因数の和:708

約数の個数: 64

約数和(自身を含む): 37670400

約数和(自身を除く): 21690184

約数列:

[1, 2, 4, 7, 8, 14, 19, 23, 28, 38, 46, 56, 76, 92, 133, 152, 161, 184, 266, 322, 437, 532, 644, 653, 874, 1064, 1288, 1306, 1748, 2612, 3059, 3496, 4571, 5224, 6118, 9142, 12236, 12407, 15019, 18284, 24472, 24814, 30038, 36568, 49628, 60076, 86849, 99256, 105133, 120152, 173698, 210266, 285361, 347396, 420532, 570722, 694792, 841064, 1141444, 1997527, 2282888, 3995054, 7990108, 15980216]

約数ペア:

[(1, 15980216), (2, 7990108), (4, 3995054), (7, 2282888), (8, 1997527), (14, 1141444), (19, 841064), (23, 694792), (28, 570722), (38, 420532), (46, 347396), (56, 285361), (76, 210266), (92, 173698), (133, 120152), (152, 105133), (161, 99256), (184, 86849), (266, 60076), (322, 49628), (437, 36568), (532, 30038), (644, 24814), (653, 24472), (874, 18284), (1064, 15019), (1288, 12407), (1306, 12236), (1748, 9142), (2612, 6118), (3059, 5224), (3496, 4571)]