277987920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{165469}}^1$

素因数の和:165492

約数の個数: 80

約数和(自身を含む): 984877440

約数和(自身を除く): 706889520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 165469, 330938, 496407, 661876, 827345, 992814, 1158283, 1323752, 1654690, 1985628, 2316566, 2482035, 2647504, 3309380, 3474849, 3971256, 4633132, 4964070, 5791415, 6618760, 6949698, 7942512, 9266264, 9928140, 11582830, 13237520, 13899396, 17374245, 18532528, 19856280, 23165660, 27798792, 34748490, 39712560, 46331320, 55597584, 69496980, 92662640, 138993960, 277987920]

約数ペア:

[(1, 277987920), (2, 138993960), (3, 92662640), (4, 69496980), (5, 55597584), (6, 46331320), (7, 39712560), (8, 34748490), (10, 27798792), (12, 23165660), (14, 19856280), (15, 18532528), (16, 17374245), (20, 13899396), (21, 13237520), (24, 11582830), (28, 9928140), (30, 9266264), (35, 7942512), (40, 6949698), (42, 6618760), (48, 5791415), (56, 4964070), (60, 4633132), (70, 3971256), (80, 3474849), (84, 3309380), (105, 2647504), (112, 2482035), (120, 2316566), (140, 1985628), (168, 1654690), (210, 1323752), (240, 1158283), (280, 992814), (336, 827345), (420, 661876), (560, 496407), (840, 330938), (1680, 165469)]